Daily profit, break-even sales and your income target
DailyUseKit · Updated 4 October 2026
Revenue is not profit
Revenue is selling price multiplied by items sold. To estimate profit, subtract the variable cost of those items and the fixed expenses for the day. Cash in your wallet can differ from profit when customers pay later, you buy stock for future days or you repay borrowing.
Separate variable and fixed expenses
A variable cost changes with the number of items sold: ingredients, packaging or per-sale fees. A daily fixed expense is entered once for the day, such as a stall fee. Put each expense in one category to avoid counting it twice. Our tool assumes a single product with one selling price and one item cost.
Example: 20 sales
Selling price is 120, item cost is 90, quantity sold is 20 and daily fixed expenses are 150. Revenue is 2,400. Variable costs total 1,800; total entered expenses are 1,950. Estimated daily profit is 450. Each sale contributes 30 towards fixed expenses and profit.
Find the minimum sales count
Break-even quantity is fixed expenses divided by contribution per item, rounded up. In the example, 150 ÷ 30 = 5 sales. For a profit target of 600, calculate (150 + 600) ÷ 30 = 25 sales. If the result is 25.2, you need 26 whole-item sales. This calculation does not predict customer demand.
When a target cannot be reached
If selling price is equal to or below item cost, selling more does not create positive contribution. The calculator marks profit targets as not achievable under those assumptions. Review price or cost rather than relying on more sales. For several products with different margins, calculate each contribution separately before combining totals. This tool is an estimate, not a full accounting system.