How this calculator helps
Changing price changes both revenue per unit and margin per unit. This calculator keeps volume fixed so you can isolate the pricing lever.
FormulaΔrevenue = (newP−oldP)×units, Δprofit = ((newP−cost)−(oldP−cost))×units
Assumption
It assumes demand (units) stays the same. In reality, price moves volume; treat output as a first-order approximation.