Percent, Percent Change and Percent Error

Calculate the percent increase. Round to the nearest percent.

Original: 45

New: 92

• 51%

• 1.04%

• 104%

• .51

Calculate the percent increase. Round to the nearest percent.

Original: 74

New: 85

• 0.15%

• 0.13%

• 13%

• 15%

What is 35% as a decimal?

What is 0.452 as a percent?

• 45.2%

• 4.52%

• 0.452%

• 452%

Calculate the percent change from 50 to 75.

• 25%

• 50%

• 75%

• 100%

What is the percent change when a quantity increases from 100 to 150?

• 25%

• 50%

• 75%

• 100%

A study reported that 15% of toddlers have food allergies. If 14,500 parents of toddlers were polled, how many parents made this claim?

• 2245 parents

• 2175 parents

• 2022 parents

• 1775 parents

Fifty-two of 80 marbles are red. What percent of the marbles are red?

• 56%

• 65%

• 66%

• 75%

The student council estimated that they would have 250 people attend the homecoming dance. The number of people who attended was 315. What is the percent of error to the nearest hundredth percent? Type the answer in the blank up to the hundredth place value.

Mathematical Equivalence

ON

The ratio that describes how far an estimate is from the actual amount

• Percent Error

• Percent Change

• Percent