Percentage calculator
Find a percent of a number, what percent one number is of another, or an increase or decrease.
Result
Percentage calculator
- What to work out
- Percent of a number
Result
—
Enter the figures to see the percent result.
Estimate for planning only. This is not tax, legal, accounting or financial advice. Results depend on the figures you enter. Check all numbers, rates and rules with the official source or a qualified professional before relying on them.
How this works and common questions
About this tool
This calculator uses only the figures you type. It finds a percent of a number, what percent one number is of another, and a percent increase or decrease. Nothing is stored.
How it works
Percent of multiplies the amount by the percent and divides by 100. What percent divides the part by the whole and multiplies by 100. An increase adds that percent to the start. A decrease subtracts it. A decrease above 100% goes below zero.
Rules
Figures are 0 or more, with up to 4 decimal places. The main result is rounded half up to 2 decimal places. A whole of 0 has no percent. Nothing you type is stored or sent.
Questions
How do I find 15% of 200?
Multiply 200 by 15, then divide by 100. The result is 30.00.
How do I find what percent 30 is of 200?
Divide 30 by 200, then multiply by 100. The result is 15.00%.
How does an increase or a decrease work?
200 increased by 15% is 230.00. 200 decreased by 15% is 170.00. A decrease larger than 100% goes below zero.
Do I need an account?
No. The tools work without one. You only need to sign in to save your work.
Is what I type saved?
No. Nothing is saved unless you sign in and choose Save. Otherwise it stays on the page.
Do you show ads or sell my information?
No. We show no ads and we do not sell your information.
Is this tax or legal advice?
No. Results are estimates for planning. Check rates and rules with the official source or a qualified professional.
Sign in to save this. Your entries stay on screen.
Estimate for planning only. This is not tax, legal, accounting or financial advice. Results depend on the figures you enter. Check all numbers, rates and rules with the official source or a qualified professional before relying on them.