Percent Proportions

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 convert a percent to a decimal?

Back

To convert a percent to a decimal, divide the percent by 100. For example, 82% becomes 0.82.

Front

What is the formula to find a percentage of a number?

Back

The formula is: (Percentage / 100) * Total Number.

Front

If 34% of a number is 51, how do you find the number?

Back

Divide 51 by 0.34 (which is 34% as a decimal). The number is 150.

Front

What is 40% of 230?

Back

40% of 230 is 92.

Front

What percent of 50 is 20?

Back

20 is 40% of 50.

Front

How do you express 82% as a decimal?

Back

82% as a decimal is 0.82.

Front

What is the relationship between fractions and percentages?

Back

A percentage is a fraction with a denominator of 100.

Front

How do you calculate the percent increase from 50 to 75?

Back

Percent Increase = ((New Value - Old Value) / Old Value) * 100. Here, it is ((75 - 50) / 50) * 100 = 50%.

Front

What is the percent decrease from 100 to 80?

Back

Percent Decrease = ((Old Value - New Value) / Old Value) * 100. Here, it is ((100 - 80) / 100) * 100 = 20%.