Free · Microeconomics calculators 💲

Product Profit with Pack Prices & Discounts

Compare unit cost and discounted sales revenue from pack prices, pack quantities and quantity sold, including loss-making sales.

  • Formula & worked example
  • Private in your browser
  • No signup
Go to tool

Calculator inputs

Loading calculator…

How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Use the result with context

Results are estimates for planning and education. Confirm rates, taxes, fees, and legal requirements with the relevant institution or a qualified professional before making a financial decision.

Formula and method

A cost of 20 per two units means 10 per unit. A selling price of 45 per three units means 15 per unit; selling 100 units at a 10% discount gives 1,350 revenue, 1,000 cost and 350 modeled profit.

Profit = quantity × (selling pack price / selling pack quantity × (1 − discount/100) − cost pack price / cost pack quantity)

Worked example

Enter these known values and leave the other values blank.

Cost for the stated pack quantity
20 USD
Units in cost pack
2 unit(s)
Selling price for the stated pack quantity
45 USD
Units in selling pack
3 unit(s)
Quantity
100 unit(s)
Discount
10 %
Unit cost
10 USD
Unit price
15 USD
Total cost
1000 USD
Revenue
1350 USD
Profit per unit from entered costs
3.5 USD
Profit from entered costs
350 USD

Assumptions and limitations

  • The cost and selling packs can contain different quantities, but both refer to the same underlying unit. Pack quantities and quantity sold must be positive.
  • The percentage discount reduces selling revenue only and must be from 0% through 100%. Fractional units are supported for goods sold by measure.
  • The result includes only the costs you entered. Overheads, platform fees, tax, returns and shipping are excluded unless already incorporated in the unit cost.
  • Zero cost, a free selling price and a 100% discount are valid. Negative modeled profit is shown as a loss, not suppressed.

Common questions

Is this net business profit?

Only if every relevant cost is already included. Otherwise it is the difference between the entered product cost and discounted revenue.

References

Bookify permits zero costs and prices, and bounds the selling discount to 0% through 100%.

Explore microeconomics calculators 💲 or browse all finance calculators.