Percentage Increase Calculator

What this calculator does

Calculate the percent growth from a starting value to a higher new value, plus the absolute change and the multiplier you can apply to reproduce it. For drops, use the Percentage Decrease Calculator; for non-directional comparisons, use Percentage Difference.

Formula

% increase = ((new − original) ÷ original) × 100

multiplier = 1 + (% increase ÷ 100)

Variable definitions

• original — Starting value (baseline). Must be greater than zero.
• new — The higher value after the increase.
• multiplier — Factor you can multiply the original by to reach the new value.

Step-by-step calculation

1. Subtract the original from the new value.
2. Divide that difference by the original.
3. Multiply by 100 to express as a percent.
4. The multiplier is 1 plus the percent expressed as a decimal.

Worked example

A subscription price rises from $50 to $65:

• Absolute increase: 65 − 50 = $15
• Percent: 15 ÷ 50 × 100 = 30%
• Multiplier: 1 + 0.30 = 1.30 (so 50 × 1.30 = 65)

How to use this calculator

1. Enter the original value (the baseline).
2. Enter the new (higher) value.
3. Read the percent, absolute change, and multiplier.

Common mistakes

• Dividing by the new value: the denominator must be the original.
• Calling a decrease an increase: if new < original, the change is negative — use the Decrease calculator.
• Original = 0: growth from zero has no defined percent.

Frequently asked questions