Percent of Change Review

Percent Increase

100

Mark wants to buy a sack of potatoes. They used to cost $3. They now cost $5. What is the percent increase?

66.7%

200

Josie wants to buy a pair of uggs. They used to be $110. They are now $125. What is the percent increase?

13.6%

300

Engineering students at Burlington College last year received an average of $11,310 in scholarships and grants. This year, the average is $13,572. What is the percent of increase in the average amount?

20%

400

Each morning, Sleepwell Hotel offers its guests a free continental breakfast with pastries and orange juice. Last year, the hotel served a total of 610 gallons of orange juice to its guests. This year, the hotel served 732 gallons of orange juice. What is the percent of increase in the amount of orange juice served yearly?  

20%

500

Marcus wants to buy a video game. IT used to cost $45. It now costs $69. What is the percent increase?

53%

Percent Decrease

100

Last year, Lily gave 98 piano performances. This year, she gave 49 piano performances. What is the percent of decrease in the annual number of performances?

-50%

200

32 to 15

-53%

300

134 to 120

-10.4%

400

74 to 55

-25.7%

500

44 to 15

-66%

Winter Trivia

100

What does Buddy the Elf make for breakfast in “Elf?”

Spaghetti topped with Pop Tarts

200

What is the shortest day of the year called?

Winter Solstice

300

What is the best-selling Christmas song ever?

White Christmas

400

 What is the lowest temperature ever recorded in the United States?

-80 degrees F

500

What is the name of the Grinch’s dog?

Max