Percent Proportion

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 find what percent one number is of another?

Back

To find what percent one number (part) is of another number (whole), use the formula: (part/whole) x 100.

Front

If 25 is 20% of a number, how do you find that number?

Back

Use the formula: number = part / (percent/100). Here, number = 25 / (20/100) = 125.

Front

What is the formula to calculate the part when given the percent and whole?

Back

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

Front

If 60 is 75% of a number, what is that number?

Back

Use the formula: number = part / (percent/100). Here, number = 60 / (75/100) = 80.

Front

What percent of 80 is 16?

Back

Use the formula: percent = (part/whole) x 100. Here, percent = (16/80) x 100 = 20%.

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.

Front

What is the relationship between percent, fraction, and decimal?

Back

Percent is a fraction with a denominator of 100, and it can also be expressed as a decimal by dividing the percent by 100.

Front

If a shirt costs $40 and is on sale for 25% off, how much is the discount?

Back

The discount is calculated as: discount = (percent/100) x original price. Here, discount = (25/100) x 40 = $10.

Front

What is the formula to find the whole when given the part and percent?

Back

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