Percent Increase
Percent Error
Percent Decrease
100

The manufacturers of M&Ms decided to do a promotion where they increased the number of M&Ms in a package from 85 to 120. Rounded to the nearest percent what is the percentage increase did this promotion represent for the consumer?

41%

100

A measurement was 34.5 m. The accepted value is 36.7 m, This is the percent error of the measurement?

5.99% error

100

A shirt was $36.00 and is now $25.00. What is the percent decrease?

30.5%

200

Movie Tickets used to be $8.00 and now they are $12.95. How much did the price increase?

$61.88

200

Eva estimates that 475 songs will fit on her MP3 player. The actual amount of songs that fit is 380. Find the percent of error.

25%

200

Suppose the original quantity is 160 and the new quantity is 104. What is the expression for the percent decrease? What is the percent decrease?

 (160-104) / 104, and 35%

300

Find the percent increase: 140 is increased to 273

95%

300

Tray estimates that a new car will cost him $11,300. It actually cost him $10,800. What is the percent of error rounded to the nearest tenth?

 4.6%

300

A bicycle priced at $300 goes on sale for $180. What is the percent change? Was it an increase or decrease?

40% decrease.

400

Last year the 7th grade had 280 students. This year the number changed to 350 students. What was the percent change? Was it an increase or decrease?

25% increase.

400

Rodney want to practice free-throws. He estimates the distance from the free-throw line to the hoop and marks it with chalk. Rodney's estimate was 13.5 feet. The actual distance should be 15 feet. Find the percent of error.

10%

400

A bus ticket normally costs $45. As a special offer, the price is reduced to $27. What is the percent change? Was it an increase or decrease?

40% decrease.

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