Percents & Percent of Change

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 percent of a number?

Back

To calculate a percent of a number, multiply the number by the percent (in decimal form). For example, to find 20% of 50, calculate 50 * 0.20 = 10.

Front

What is the formula for percent of change?

Back

Percent of change = ((New Value - Old Value) / Old Value) * 100.

Front

Find 250% of 25.

Back

62.5

Front

Find 72% of 325.

Back

234

Front

Find the percent of change from 48 to 36.

Back

25%.

Front

If 9 is 45% of what number, what is the number?

Back

20.

Front

What percent of 60 is 12?

Back

20%.

Front

What does it mean if a value increases by a certain percent?

Back

It means the new value is greater than the original value by that percent of the original value.

Front

What does it mean if a value decreases by a certain percent?

Back

It means the new value is less than the original value by that percent of the original value.