Percentage Increase Calculator

Calculate percentage increase with reusable inputs and a clear result. This free calculator runs locally, supports shareable URL values and does not send entered amounts to analytics.

🔒 100% private — files never leave your browser

Starting value

Increase percentage

Result

Increase amount

New value

115

Your values stay in this URL when you share it; they are not sent to analytics.

Formula

starting value × (1 + increase percentage ÷ 100)

Worked example

100 increased by 15% = 115.

How to use the Percentage Increase Calculator

1 Enter the values for the calculation.
2 Review the formula and worked example below the form.
3 Copy the result or share the URL with its values when useful.

Frequently asked questions

What is the percentage increase formula?

starting value × (1 + increase percentage ÷ 100).

Are my entered amounts uploaded?

No. The calculation runs in your browser. URL sharing stores values only in the address you choose to share.

Is this financial, tax or medical advice?

No. This is a general arithmetic tool. Verify business decisions and local requirements with qualified sources.

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