PERCENTS

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 25% of 200, calculate 200 * 0.25 = 50.

Front

What is the formula to find what percent one number is of another?

Back

The formula is: (part/whole) * 100 = percent.

Front

If 50 is 25% of what number, how do you find that number?

Back

To find the number, use the formula: whole = part / (percent/100). So, whole = 50 / (25/100) = 200.

Front

What is 10% of 150?

Back

10% of 150 is calculated as 150 * 0.10 = 15.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100. For example, 1/4 = (1 ÷ 4) * 100 = 25%.

Front

What is the relationship between percentages and decimals?

Back

Percentages can be converted to decimals by dividing by 100. For example, 75% = 75/100 = 0.75.

Front

What is 15% of 200?

Back

15% of 200 is calculated as 200 * 0.15 = 30.

Front

If 30 is what percent of 120, how do you find the percent?

Back

Use the formula: percent = (part/whole) * 100. So, percent = (30/120) * 100 = 25%.

Front

What is the equation for finding a percentage increase?

Back

The equation is: new value = original value + (original value * percent increase).