Percentage of an Amount Calculator
🔢 Number, percentages & ratio. Use the Percentage of an amount formula to find part, percentage, amount: pick the value you want, type the others, and the answer updates as you go.
Part30
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Part | no unit |
| Percentage | % |
| Amount | no unit |
Worked example
Find the part when Percentage = 15 %, Amount = 200.
Using part = p/100 × amount: Part = 30.
Frequently asked questions
What is the formula for Percentage of an amount?
part = p/100 × amount.
What do the letters stand for, and what units are used?
Part, Percentage in %, Amount.
How do you calculate part?
Put the values into part = p/100 × amount. For example, with Percentage = 15 %, Amount = 200, part = 30.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (part, percentage, amount) and fill in the others: it rearranges the formula for you.
