Percents & 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 decimal to a percent?

Back

To convert a decimal to a percent, multiply the decimal by 100 and add a percent sign. For example, 0.506 x 100 = 50.6%.

Front

What is the formula for finding the percent of a number?

Back

The formula is: Percent = (Part/Whole) x 100.

Front

What does 'IS' represent in percent problems?

Back

'IS' represents the part of the whole that is being compared to the total.

Front

What does 'OF' represent in percent problems?

Back

'OF' represents the whole or total amount.

Front

How do you find the whole when given a part and a percent?

Back

Use the formula: Whole = Part / (Percent/100).

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you set up a proportion for percent problems?

Back

Set up the proportion as: Part/Whole = Percent/100.

Front

What is the percent equivalent of 30 out of 100?

Back

30 out of 100 is equivalent to 30%.

Front

How do you find a percent increase?

Back

Percent Increase = ((New Value - Original Value) / Original Value) x 100.