Math

Percentage Increase Classic Calculator

Increase a starting value by a percentage.

Calculated Output

New value 230

Amount of increase 30

Formula: new = value × (1 + percent ÷ 100)

Step-by-Step Breakdown

1. Values used:

2. Original value = 200

3. Increase by = 15 %

5. New value = 230

6. Amount of increase = (200 / 100) x 15 = 2 x 15 = 30

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The math behind it

new = value × (1 + percent/100). The increase itself is value × percent/100.

200 increased by 15% → 200 × 1.15 = 230.

How do I reverse it?

Divide the new value by (1 + percent/100) to recover the original.