Ideas About Percent

16 is what percent of 80?

• 20%

• 200%

• 128%

• 12.8%

Of the 160 7th graders at CMS, 96 donate canned goods to the food drive. What percent of the 7th graders donated food?

• 60%

• 66%

• 96%

• 99%

What number is 17% of 50?

12 is 40% of what number?

88 is what percent of 160?

Calculate the percent increase. Round to the nearest percent.

Original: 45

New: 92

• 51%

• 1.04%

• 104%

• .51

Lacey bought a new purse that originally cost $25 and is on sale for $15. Find the percent of change in the price in the purse.

• Decrease of 40%

• Decrease of 10%

• Decrease of 30%

• Decrease of 20%

The attendance for the basketball game was estimated to be 15,000 people but 12,500 people actually attended. What was the percent error?

• 16.67%

• 20%

• 2500%

• 80%

An archaeologist estimated that a fossil was 520 years old. It was actually 500 years old. What was the percent error?

• 4%

• 20%

• 3.8%

• none of these

26 is 5% of what number?

• 3

• 5

• 25.95

• 520