Business Calculation Formulas | 9 Exercises

Application: Gourmet Delights

States :

Gourmet Délices is a company specializing in the distribution of high-end food products. The sales manager wants to optimize the sales prices of the company's various products. Currently, one of their products, matured cheeses, is purchased at a price of €8 excluding VAT per unit. The sales price is €12 excluding VAT per unit. Gourmet Délices generally purchases 500 units per month. You are responsible for analyzing and providing forecasts based on these elements.

Work to do :

  1. Calculate the margin rate achieved on matured cheeses.
  2. Determine the unit margin obtained on each cheese sold.
  3. Calculate the overall monthly margin for matured cheeses.
  4. Find the selling price excluding VAT required to obtain a markup rate of 30%.
  5. Analyze the impact on monthly turnover if Gourmet Délices decides to increase the selling price to €14 excluding VAT.

Proposed correction:

  1. To calculate the margin rate, use the formula:
    Margin rate = ((PV HT – PA HT) ÷ PA HT) x 100.
    Substituting, ((12 – 8) ÷ 8) x 100 = 50%.
    The margin rate achieved on matured cheeses is therefore 50%.

  2. The unit margin is calculated by the difference between the selling price and the purchase price:
    Unit margin = PV HT – PA HT.
    So, 12 – 8 = €4.
    Each cheese sold generates a unit margin of €4.

  3. The monthly overall margin is calculated by multiplying the unit margin by the quantity sold: \

Overall margin = Unit margin x Quantity sold.
So, 4 x 500 = €2.
The overall monthly margin is €2.

  1. To get a markup rate of 30%, use the formula:
    PV HT = PA HT ÷ (1 – Mark rate).
    Substituting, 8 ÷ (1 – 0,30) = €11,43.
    The selling price excluding tax will have to be €11,43 to reach a markup rate of 30%.

  2. If the selling price is increased to €14 excluding VAT, calculate the new monthly turnover:
    Turnover = PV HT x Quantity sold.
    So, 14 x 500 = €7.
    Increasing the selling price to €14 excluding VAT would result in a monthly turnover of €7.

Formulas Used:

Title Formulas
Margin rate ((PV HT – PA HT) ÷ PA HT) x 100
Unit margin PV HT – PA HT
Overall margin Unit margin x Quantity sold
PV HT for brand rate PA HT ÷ (1 – Mark rate)
Turnover PV HT x Quantity sold

Application: Tech Solutions

States :

Tech Solutions is an innovative technology company that sells connected home devices. A model from their range is purchased at €150 excluding VAT and sold at €250 excluding VAT. The CFO wants to evaluate the effectiveness of the pricing policy for this product. They plan to sell 1 units this quarter.

Work to do :

  1. Calculate the margin rate for this device.
  2. Determine the total amount of margin made on each unit sold.
  3. Calculate the overall quarterly margin for this device.
  4. Find the selling price excluding tax that would allow a markup rate of 35% to be achieved.
  5. Evaluate the impact on the overall margin if Tech Solutions manages to reduce the purchase cost to €140 excluding VAT.

Proposed correction:

  1. The margin rate is calculated using the formula:
    Margin rate = ((PV HT – PA HT) ÷ PA HT) x 100.
    Substituting, ((250 – 150) ÷ 150) x 100 = 66,67%.
    So the margin rate is 66,67%.

  2. The margin achieved per unit is calculated by:
    Unit margin = PV HT – PA HT.
    So, 250 – 150 = €100.
    The margin made on each unit sold is €100.

  3. For the quarterly overall margin, use the formula: \

Overall margin = Unit margin x Quantity sold.
So, 100 x 1 = €000.
The overall margin for the quarter is €100.

  1. To get a markup rate of 35%, use the formula:
    PV HT = PA HT ÷ (1 – Mark rate).
    Substituting, 150 ÷ (1 – 0,35) = €230,77.
    The selling price excluding VAT should be €230,77.

  2. If the purchase cost is reduced to €140 excluding VAT, the new margin is calculated:
    New unit margin = PV HT – New PA HT.
    So, 250 – 140 = €110.
    Overall margin with cost reduction = 110 x 1 = €000.
    Reducing the purchase cost would increase the overall margin to €110.

Formulas Used:

Title Formulas
Margin rate ((PV HT – PA HT) ÷ PA HT) x 100
Unit margin PV HT – PA HT
Overall margin Unit margin x Quantity sold
PV HT for brand rate PA HT ÷ (1 – Mark rate)
New unit margin PV HT – New PA HT

Application: Home Decor

States :

Décor Maison, a player in the interior decoration sector, sells handmade curtains. Each curtain is purchased for €30 excluding VAT and sold for €60 excluding VAT. The company plans to sell 750 curtains this month and is considering adjustments to increase its profits.

Work to do :

  1. Calculate the margin rate for each curtain sold.
  2. Establish the unit margin made on the curtains.
  3. Calculate the monthly overall margin.
  4. If Décor Maison wants the markup rate to be 40%, what should the new selling price excluding tax be?
  5. Analyze the changes in the overall margin if the purchase price increases by 10%.

Proposed correction:

  1. The margin rate is calculated with:
    Margin rate = ((PV HT – PA HT) ÷ PA HT) x 100.
    Substituting, ((60 – 30) ÷ 30) x 100 = 100%.
    The margin rate for each curtain is 100%.

  2. The unit margin is determined by:
    Unit margin = PV HT – PA HT.
    So, 60 – 30 = €30.
    The unit margin achieved is €30.

  3. The monthly overall margin is given by: \

Overall margin = Unit margin x Quantity sold.
So, 30 x 750 = €22.
The overall margin for the month is €22.

  1. For a markup rate of 40%, the selling price excluding tax is calculated by:
    PV HT = PA HT ÷ (1 – Mark rate).
    Substituting, 30 ÷ (1 – 0,40) = €50.
    The new selling price excluding VAT should be €50.

  2. If the purchase price increases by 10%, the new PA excluding tax becomes:
    New PA HT = PA HT x (1 + 0,10) = 30 x 1,10 = €33.
    With this PA excluding tax, the new unit margin is: 60 – 33 = €27.
    So the new overall margin is: 27 x 750 = €20.
    A 10% increase in the purchase price reduces the overall margin to €20.

Formulas Used:

Title Formulas
Margin rate ((PV HT – PA HT) ÷ PA HT) x 100
Unit margin PV HT – PA HT
Overall margin Unit margin x Quantity sold
PV HT for brand rate PA HT ÷ (1 – Mark rate)
New PA HT PA HT x (1 + 0,10)

Application: HealthTech

States :

SantéTech develops specialized medical devices. A certain device is purchased at €1 excluding VAT and sold at €200 excluding VAT in hospitals. In order to continue investing in R&D, they want to evaluate the margins generated and possible price adjustments. Currently, 2 units are planned for quarterly sale.

Work to do :

  1. Calculate the margin rate for this medical device.
  2. What is the unit margin of the device?
  3. Calculate the overall quarterly margin achieved on this product.
  4. If SantéTech wants to achieve a 25% markup rate, what should the selling price excluding tax be?
  5. Discuss the impact on margin if the purchase cost could be reduced by 15%.

Proposed correction:

  1. The margin rate is obtained by the formula:
    Margin rate = ((PV HT – PA HT) ÷ PA HT) x 100.
    Substituting, ((2 – 000) ÷ 1) x 200 = 1%.
    The margin rate achieved on the device is 66,67%.

  2. The unit margin is calculated as follows:
    Unit margin = PV HT – PA HT.
    So, 2 – 000 = €1.
    The unit margin is €800.

  3. For the quarterly overall margin, do the following: \

Overall margin = Unit margin x Quantity sold.
So, 800 x 200 = €160.
The overall quarterly margin is €160.

  1. For a markup rate of 25%, the PV excluding tax is calculated as follows:
    PV HT = PA HT ÷ (1 – Mark rate).
    Substituting, 1 ÷ (200 – 1) = €0,25.
    The adjusted sale price should be €1.

  2. If the purchase cost is reduced by 15%, the net PA becomes:
    New PA HT = PA HT x (1 – 0,15) = 1 x 200 = €0,85.
    The new unit margin is then: 2 – 000 = €1.
    The new overall margin is: 980 x 200 = €196.
    A 15% reduction in the purchase cost increases the overall margin to €196.

Formulas Used:

Title Formulas
Margin rate ((PV HT – PA HT) ÷ PA HT) x 100
Unit margin PV HT – PA HT
Overall margin Unit margin x Quantity sold
PV HT for brand rate PA HT ÷ (1 – Mark rate)
New PA HT PA HT x (1 – 0,15)

Application: Sports Innovate

States :

Sports Innovate is a company that creates high-precision sports equipment. A model of gym equipment that they buy for €250 excluding VAT and sell for €400 excluding VAT generates a monthly sales volume of 300 units. The company is wondering about profitability and possible adjustments.

Work to do :

  1. Calculate the margin rate for this equipment.
  2. Determine the unit margin on each piece of equipment sold.
  3. Calculate the overall monthly margin for this product.
  4. What would be the necessary selling price excluding tax for a markup rate of 20%?
  5. Evaluate the impact on overall margin if the selling price drops by 10%.

Proposed correction:

  1. To obtain the margin rate, use the formula:
    Margin rate = ((PV HT – PA HT) ÷ PA HT) x 100.
    Substituting, ((400 – 250) ÷ 250) x 100 = 60%.
    The margin rate is 60%.

  2. The unit margin is calculated by:
    Unit margin = PV HT – PA HT.
    So, 400 – 250 = €150.
    There is a unit margin of €150.

  3. The monthly overall margin is determined as follows: \

Overall margin = Unit margin x Quantity sold.
So, 150 x 300 = €45.
The overall monthly margin is €45.

  1. To get a 20% markup rate, use:
    PV HT = PA HT ÷ (1 – Mark rate).
    Substituting, 250 ÷ (1 – 0,20) = €312,50.
    The selling price excluding tax for this markup rate would be €312,50.

  2. If the sale price decreases by 10%, the new PV excluding tax becomes:
    New PV HT = PV HT x (1 – 0,10) = 400 x 0,90 = €360.
    New unit margin = 360 – 250 = €110.
    New overall margin = 110 x 300 = €33.
    A 10% drop in the selling price will reduce the overall margin to €33.

Formulas Used:

Title Formulas
Margin rate ((PV HT – PA HT) ÷ PA HT) x 100
Unit margin PV HT – PA HT
Overall margin Unit margin x Quantity sold
PV HT for brand rate PA HT ÷ (1 – Mark rate)
New PV HT PV HT x (1 – 0,10)

Application: Elite Mode

States :

The Mode Élite brand offers high-end fashion accessories. A special bag is purchased for €80 excluding VAT and sold for €150 excluding VAT. They plan to sell 600 bags this semester. The goal is to review the margins for a better pricing strategy.

Work to do :

  1. Determine the margin rate applied to each bag.
  2. Calculate the unit margin that the bag provides.
  3. Calculate the overall half-yearly margin on this product.
  4. What selling price excluding tax would ensure a markup rate of 50%?
  5. Study the impact if the selling price is reduced by €5 per bag sold.

Proposed correction:

  1. The margin rate is determined by the formula:
    Margin rate = ((PV HT – PA HT) ÷ PA HT) x 100.
    Substituting, ((150 – 80) ÷ 80) x 100 = 87,50%.
    The margin rate on each bag is 87,50%.

  2. The unit margin is calculated by:
    Unit margin = PV HT – PA HT.
    So, 150 – 80 = €70.
    The unit margin is €70.

  3. The half-yearly overall margin is calculated as follows: \

Overall margin = Unit margin x Quantity sold.
So, 70 x 600 = €42.
The overall margin for the half-year amounts to €42.

  1. For a markup rate of 50%, calculate the PV excluding tax:
    PV HT = PA HT ÷ (1 – Mark rate).
    Substituting, 80 ÷ (1 – 0,50) = €160.
    The selling price excluding VAT should be €160.

  2. If the sale price is reduced by €5, the new PV excluding tax is:
    New PV excluding tax = 150 – 5 = 145 €.
    New unit margin = 145 – 80 = €65.
    New overall margin = 65 x 600 = €39.
    A reduction of €5 per bag reduces the overall margin to €39.

Formulas Used:

Title Formulas
Margin rate ((PV HT – PA HT) ÷ PA HT) x 100
Unit margin PV HT – PA HT
Overall margin Unit margin x Quantity sold
PV HT for brand rate PA HT ÷ (1 – Mark rate)
New PV HT PV HT – Reduction amount

Application: Bio Health

States :

Bio Health produces natural food supplements. A flagship product is purchased at €20 excluding VAT and sold at €45 excluding VAT. They plan to sell 2 units per month. The company wants to re-evaluate its margins for future adjustments.

Work to do :

  1. Calculate the margin rate for this dietary supplement.
  2. Determine the unit margin achieved.
  3. Calculate the overall monthly margin for this product.
  4. What should the selling price excluding tax be to achieve a markup rate of 55%?
  5. Analyze the effect on the overall monthly margin if the purchase price is reduced by €4 excluding VAT per unit.

Proposed correction:

  1. The margin rate is calculated using:
    Margin rate = ((PV HT – PA HT) ÷ PA HT) x 100.
    Substituting, ((45 – 20) ÷ 20) x 100 = 125%.
    The margin rate is therefore 125%.

  2. The unit margin is determined by:
    Unit margin = PV HT – PA HT.
    So, 45 – 20 = €25.
    The unit margin achieved is €25.

  3. The monthly overall margin is obtained via: \

Overall margin = Unit margin x Quantity sold.
So, 25 x 2 = €000.
The overall monthly margin amounts to €50.

  1. For a markup rate of 55%, the PV excluding tax is:
    PV HT = PA HT ÷ (1 – Mark rate).
    Substituting, 20 ÷ (1 – 0,55) = €44,44.
    The selling price excluding VAT should be €44,44.

  2. If the purchase price is reduced by €4 excluding VAT, the new PA excluding VAT becomes:
    New PA HT = 20 – 4 = 16 €.
    New unit margin = 45 – 16 = €29.
    New overall margin = 29 x 2 = €000.
    A reduction in the purchase price of €4 increases the total margin to €58.

Formulas Used:

Title Formulas
Margin rate ((PV HT – PA HT) ÷ PA HT) x 100
Unit margin PV HT – PA HT
Overall margin Unit margin x Quantity sold
PV HT for brand rate PA HT ÷ (1 – Mark rate)
New PA HT PA HT – Purchase price reduction

Application: Smart Education

States :

Smart Education develops digital educational tools for schools. Software is purchased for €500 excluding VAT and sold for €1 excluding VAT. The company plans to sell 000 licenses per quarter. Smart Education wants to review its margins to optimize its sales.

Work to do :

  1. Calculate the margin rate for this software.
  2. What is the unit margin generated by the sale of each license?
  3. Calculate the overall quarterly margin achieved.
  4. What should the selling price excluding tax be for a markup rate of 60%?
  5. Evaluate the impact on margin if the selling price increases by 20%.

Proposed correction:

  1. The margin rate is obtained by:
    Margin rate = ((PV HT – PA HT) ÷ PA HT) x 100.
    Substituting, ((1 – 000) ÷ 500) x 500 = 100%.
    The margin rate on the software is 100%.

  2. The unit margin is calculated by:
    Unit margin = PV HT – PA HT.
    So, 1 – 000 = €500.
    The margin made per license is €500.

  3. The quarterly overall margin is calculated as follows: \

Overall margin = Unit margin x Quantity sold.
So, 500 x 150 = €75.
The overall margin for the quarter is €75.

  1. For a markup rate of 60%, the necessary PV excluding tax is:
    PV HT = PA HT ÷ (1 – Mark rate).
    Substituting, 500 ÷ (1 – 0,60) = €1.
    The selling price excluding tax must be €1.

  2. If the selling price increases by 20%, the new PV excluding tax becomes:
    New PV excluding tax = 1 x 000 = €1,20.
    New unit margin = 1 – 200 = €500.
    New overall margin = 700 x 150 = €105.
    A 20% increase in the selling price will raise the overall margin to €105.

Formulas Used:

Title Formulas
Margin rate ((PV HT – PA HT) ÷ PA HT) x 100
Unit margin PV HT – PA HT
Overall margin Unit margin x Quantity sold
PV HT for brand rate PA HT ÷ (1 – Mark rate)
New PV HT PV HT x (1 + 0,20)

Application: Health Accelerator

States :

Accélérateur Santé is a company that develops fitness equipment. The purchase price of an exercise bike is €350 excluding VAT, and it is sold at €550 excluding VAT. They plan to sell 400 units during the next marketing campaign.

Work to do :

  1. Calculate the margin rate for the exercise bike.
  2. What is the unit margin generated by each sale?
  3. Calculate the overall margin expected for the campaign.
  4. What should the selling price be excluding tax to obtain a markup rate of 45%?
  5. What would be the effects on total turnover if the quantity sold increased by 25%?

Proposed correction:

  1. The margin rate is calculated with:
    Margin rate = ((PV HT – PA HT) ÷ PA HT) x 100.
    Substituting, ((550 – 350) ÷ 350) x 100 = 57,14%.
    The margin rate for the bicycle is 57,14%.

  2. The unit margin is calculated by:
    Unit margin = PV HT – PA HT.
    So, 550 – 350 = €200.
    The margin on each sale is €200.

  3. The expected overall margin is determined as follows: \

Overall margin = Unit margin x Quantity sold.
So, 200 x 400 = €80.
The overall margin expected for the campaign is €80.

  1. For a markup rate of 45%, the necessary PV excluding tax is:
    PV HT = PA HT ÷ (1 – Mark rate).
    Substituting, 350 ÷ (1 – 0,45) = €636,36.
    The sale price should be €636,36.

  2. If sales increase by 25%, the new quantity sold will be:
    New quantity = 400 x 1,25 = 500 units.
    The total turnover will then be: 550 x 500 = €275.
    A 25% increase in sales would bring total turnover to €275.

Formulas Used:

Title Formulas
Margin rate ((PV HT – PA HT) ÷ PA HT) x 100
Unit margin PV HT – PA HT
Overall margin Unit margin x Quantity sold
PV HT for brand rate PA HT ÷ (1 – Mark rate)
New quantity Quantity sold x (1 + Rate of increase)

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