Everyday
Percentage Calculator
This percentage calculator covers the percentage questions people search every day: what is X percent of Y, what percentage X is of Y, and the percentage increase or decrease between two values.
percentchangeratiomath
Calculate what a percentage of a number equals.
Result
36
15% of 240
Percentage
15%
Base value
240
Computed amount
36
How to use
Simple steps for accurate inputs
Step 1
Choose the percentage mode that matches your question.
Step 2
Enter the values shown in the prompt fields.
Step 3
Read the highlighted answer and the supporting values beneath it.
Formula and method
Percentage formulas
Common percentage calculations use result = percent × base, percent = part ÷ whole × 100, and change = (new − original) ÷ original × 100.
Frequently asked questions
How do I find a percentage increase?
Use the percentage change mode. Enter the original value and the new value. A positive result indicates an increase and a negative result indicates a decrease.
Can I use this for discounts or markups?
Yes. Percentage calculations are useful for discounts, tax rates, commissions, markups, and growth comparisons.
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