To work out a percentage of something, you can follow these simple steps:
How to Calculate a Percentage of a Number
Step 1: Understand the Percentage
A percentage represents a part out of 100. For example, 25% means 25 out of 100.
Step 2: Convert the Percentage to a Decimal
Divide the percentage by 100 to convert it into a decimal.
- Example: 25% ÷ 100 = 0.25
Step 3: Multiply by the Total Amount
Multiply the decimal by the total number you want to find the percentage of.
- Example: To find 25% of 200, calculate 0.25 × 200 = 50
Formula
Percentage of a number=(Percentage100)×Total number\text{Percentage of a number}=\left(\frac{\text{Percentage}}{100}\right)\times \text{Total number}Percentage of a number=(100Percentage)×Total number
Example
Question: What is 15% of 80? Solution:
- Convert 15% to decimal: 15 ÷ 100 = 0.15
- Multiply by 80: 0.15 × 80 = 12
Answer: 15% of 80 is 12. If you want, I can help with more examples or explain how to find what percentage one number is of another!
