Price increase impact calculator.
Enter your current price, units, and cost. See what a price hike does to profit — and the maximum volume drop you can absorb before you're worse off than before.
Your numbers
Per item, per month. Defaults assume a café coffee at €4.20.
New monthly profit
A 10% price hike isn't a 10% profit lift — it's usually much more.
Most owners underestimate how much pricing matters because they think of the price increase as a small adjustment. But the increase flows straight to the bottom line — the costs don't change, so every extra cent is profit. A 10% price increase on a €4 coffee with €1 cost adds €0.40 to a €3 profit margin — that's a 13% profit lift per unit.
The formula
Profit per unit = price − costMax volume drop = (new profit per unit − old profit per unit) ÷ new profit per unit
How to use the volume-drop number
This is the killer insight. If you can absorb a 9% volume drop and still match old profit, then any volume drop below 9% means you're ahead. Most price-sensitive customers are a smaller share than owners fear — losing 3–5% to a price hike is typical, and 9% headroom covers it easily.
The honest test
Try a small subset first. Raise the price on one product for two weeks. Track units sold and revenue. Then compare new revenue × new margin to old. The math almost always favors the hike — what owners actually lose is courage, not customers.