How to caculate the percentage?

To calculate a percentage, you can use the following formula:

Percentage = (Part / Total) x 100

Where:
- Part is the value you want to find the percentage of
- Total is the total value or the whole amount

For example, if you want to find out what percentage 25 is of 100, you would calculate it as follows:

Percentage = (25 / 100) x 100
Percentage = 0.25 x 100
Percentage = 25%

So, 25 is 25% of 100.

Method 1: Fraction to Percentage

1. Convert the fraction to a decimal by dividing the numerator by the denominator.
2. Multiply the decimal by 100 to convert it to a percentage.

Example: To convert 3/5 to a percentage:
- Decimal: 3/5 = 0.6
- Percentage: 0.6 x 100 = 60%

Method 2: Proportion to Percentage

1. Set up a proportion where the part is to the whole as the percentage is to 100.
2. Solve the proportion for the percentage.

Example: To find the percentage of 25 out of 50:
- Proportion: 25/50 = x/100
- Percentage: x = (25/50) x 100 = 50%

Method 3: Ratio to Percentage

1. Divide the part by the whole to get a ratio.
2. Multiply the ratio by 100 to convert it to a percentage.

Example: To find the percentage of 2:5:
- Ratio: 2/5 = 0.4
- Percentage: 0.4 x 100 = 40%