Percentage change of a number
The calculation of the change in one number relative to another can be represented as a percentage. This calculator is designed to quickly and correctly calculate the percentage increase or decrease. It is also suitable for counting the percentage increase in prices for any product..
% increase = 100 x (B — A) / A
% decrease = 100 x (A — B) / A
In this formula: A is the old number, B is the new one.