How do you calculate the percentage of a number?

To calculate the percentage of a number, you use the formula where you take the part, divide it by the whole, and then multiply by 100%. This formula captures the relationship between the part and the whole through a simple proportional comparison.

For instance, if you want to find out what percentage 25 is of 200, you would set it up as follows:

1. Identify the part (25) and the whole (200).

2. Divide the part by the whole: 25/200 = 0.125.

3. Multiply by 100% to convert it to a percentage: 0.125 × 100% = 12.5%.

This tells you that 25 is 12.5% of 200. This method provides a straightforward way to understand how a specific value relates to a total value, making it essential for calculations involving proportions and statistics.