Free price increase calculator
Compare current and proposed contribution per sale, estimate the volume response, and find the sales level that preserves the current contribution dollars.
Quick answer
Compare contribution per sale before and after the change. The higher price works financially only when contribution from the remaining volume, less any added recurring cost, holds or improves the current baseline.
Contribution per sale = selling price − variable cost per sale
Sales needed to preserve contribution = (current total contribution + added recurring cost) ÷ proposed contribution per sale
Reviewed September 16, 2026
Step 1
This is an educational contribution model, not a demand forecast or profit guarantee. It holds existing fixed costs constant and excludes taxes, customer mix, competitor reactions, capacity, churn timing, price elasticity, and one-time implementation costs unless reflected in the inputs. Test more than one volume scenario before changing a live price.
Contribution, not reassurance
Some resistance may be financially tolerable because each remaining sale contributes more. The useful question is how much volume the business can lose before total contribution falls.
That answer is only a financial boundary. Customer trust, positioning, competitor response, capacity use, and long-term demand still require judgment and evidence.
Review the exact formulas →The arithmetic is not demand research
Revenue ignores the cost caused by each sale. Contribution shows what remains after variable cost to support fixed costs and profit.
Include materials, direct fulfillment labor, transaction fees, shipping, commissions, and other costs that change with one additional sale. Keep fixed overhead out unless the price change itself adds a recurring period cost.
No. It is the financial tolerance boundary under the costs entered. Use order history, customer interviews, competitor evidence, cohorts, or a bounded test to estimate actual response.
Not automatically. Different products, contracts, customer groups, and channels may have different costs, value, switching risk, and notice requirements. Run the relevant segments separately.
