Profit Calculator

Buying Cost

units

Selling price

units

Profit

%

Results

Total cost

0

Revenue

0

Total profit

0

Profit per unit

0

Table of Contents

1

What is Profit Calculator?

This calculator estimates unit and total profit for a batch of identical items. It is designed for situations where a cost amount may cover several units and a quoted selling price may also cover several units. The page first converts each amount to a per-item basis, applies an optional percentage discount to the selling price, and then scales the figures by quantity.

The result is only as complete as the cost entered. If “cost” includes purchase cost but omits shipping, marketplace fees, labor, returns, rent or taxes, the displayed profit does not include those expenses. It is best described as profit under the supplied cost assumptions rather than a complete accounting net profit.

2

How to Use This Calculator

  1. Enter a nonnegative cost and the positive number of units that cost covers.
  2. Enter a nonnegative selling price and the positive number of units that price covers. Select the same currency for cost and price; the form rejects mismatched labels and performs no exchange-rate conversion.
  3. Enter the positive quantity you expect to sell.
  4. Optionally enter a discount from 0% through 100%. A blank discount is treated as zero.
  5. Select Calculate. The page finds cost per item and selling price per item, reduces selling price by the discount, and multiplies each per-item amount by quantity.
  6. Review total cost, discounted revenue, total profit and profit per unit. The response also calculates profit percentage relative to total cost, although that percentage is not currently shown in the result cards.
3

Formula Used

Cost per item = cost amount ÷ units covered by cost

Selling price per item = price amount ÷ units covered by price

Discounted selling price = selling price per item × (1 − discount ÷ 100)

Total cost = cost per item × quantity

Revenue = discounted selling price × quantity

Total profit = revenue − total cost

Profit per unit = discounted selling price − cost per item

Profit percentage = total profit ÷ total cost × 100 when total cost is positive. This last measure is a markup on cost, not a profit margin on revenue.

4

Variables Explained

Entry or outputMeaning
Cost and “per” unitsThe included cost for a stated pack or batch size, converted to cost per item.
Price and “per” unitsThe listed selling amount for a stated number of items, before discount.
QuantityThe number of identical items included in total cost, revenue and profit.
DiscountThe percentage removed from selling price, limited to 0% through 100%.
RevenueDiscounted selling price per item multiplied by quantity.
Profit outputsRevenue minus included cost, shown for the full quantity and for one item.
CurrencyA shared label for cost, price and results; conversion is not performed.
5

Worked Example

A shop buys 12 identical items for 240 USD, so cost per item is 240 ÷ 12 = 20 USD. It lists each item at 35 USD, plans to sell 30, and applies a 10% discount. Discounted selling price is 35 × (1 − 0.10) = 31.50 USD.

Total cost is 20 × 30 = 600 USD. Revenue is 31.50 × 30 = 945 USD. Total profit is 945 − 600 = 345 USD, and profit per unit is 31.50 − 20 = 11.50 USD. The calculated profit percentage on cost is 345 ÷ 600 × 100 = 57.5%.

Enter cost 240 per 12 units, price 35 per 1 unit, quantity 30, discount 10, and select USD for both amounts to reproduce those figures.

6

Why Use This Calculator?

A positive total means discounted sales revenue exceeds the entered cost for the quantity. Zero is break-even under those included costs, and a negative result is a loss. The per-unit result is convenient for one-item comparisons, while total profit shows the effect of planned volume.

The percentage returned by the calculation uses cost as its denominator. It should not be called profit margin, which commonly divides profit by revenue. In the example, markup on cost is 57.5%, while profit divided by revenue is about 36.51%. Before using the answer for pricing, add every relevant per-unit and period cost or clearly state what has been excluded.

7

Common Mistakes

    • Entering a pack cost but leaving its “per” value at 1, which overstates unit cost.
    • Entering a price for a case while treating it as a single-item price.
    • Mixing currencies; matching selectors are required and no conversion occurs.
    • Entering 10% as 0.10. The form expects 10 for a ten-percent discount.
    • Calling markup on cost a profit margin on sales.
    • Leaving out selling fees, freight, labor, returns or overhead and treating the result as complete net profit.
8

Frequently Asked Questions

What does the “per” field mean?

It tells the page how many items the adjacent amount covers. A cost of 240 per 12 becomes 20 per item before totals are calculated.

Is the displayed total profit net profit?

Only if the cost entry already includes every expense you intend to deduct. The form has no separate fields for overhead, tax, fees, labor or returns.

What happens if discount is left blank?

The page treats it as zero, so the listed selling price per item is used without a discount reduction.

Can the discount exceed 100 percent?

No. The accepted range is 0% through 100%. A larger value would imply a negative selling price and is rejected.

Why must the currencies match?

The arithmetic directly subtracts cost from revenue. Different currencies cannot be subtracted meaningfully without an exchange rate, and this form does not look one up.

Is profit percentage the same as margin?

No. The calculated percentage divides profit by cost, which is a markup-style measure. Margin instead divides profit by sales revenue.

Can I use decimal quantities?

The calculation accepts positive decimals, which can suit weight or another divisible unit. Keep cost, price and quantity on the same definition of one unit.

9

Sources & References

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