Percent Growth Calculator

The calculator uses the standard percent growth formula: (new − old) ÷ |old| × 100. First, the difference between the new and old values is found by subtracting the old from the new. That difference is then divided by the absolute value of the old value, which handles edge cases where the starting point is negative (such as a company recovering from a loss). Multiplying by 100 converts the ratio to a percentage. A positive result indicates growth or an increase from the starting value, while a negative result indicates a decline or decrease. Using the absolute value of the old figure in the denominator prevents sign errors when tracking changes from negative baselines, ensuring that an improvement from a negative value correctly produces a positive growth percentage.