Percent of Change Worksheet

A percent of change is the ratio of the amount of change to the original amount: ________________________ = ________________________ ________________________ ________________________

• amount of change / original amount = percent of change / 100

• amount of change / percent of change = original amount / 100

• original amount / amount of change = percent of change / 100

• percent of change / original amount = amount of change / 100

When the original amount goes ________, it’s called a __________ _______________.

When the original amount goes ________, it’s called a __________ _______________.

• down, percent decrease

• up, percent increase

• down, percent increase

• up, percent decrease

Beth bought a 75 pair of jeans for 60. Find the percent of change and classify as a percent increase or decrease.

(a)  

• 20% increase

• 20% decrease
• 25% increase

• 25% decrease

John went from weighing 140 pounds to 155 pounds. Find the percent of change: (a)   . Classify as a percent increase or decrease: ​ (b)  

• 10.7%
• 12.5%
• 8.9%
• 15.0%
• increase
• decrease

Directions: Find the percent of change and classify as a percent increase or decrease. Round to the nearest tenth of a percent when necessary. 2. The computer that sold for 815 last month sold for 925 this month. Percent of change: (a)   ​ (b)  

• 13.5%
• 11.9%.
• 15.7%
• increase
• decrease

Last year, the debate team had 25 members. This year, the club has 18 members. The percent of change is (a)   and it is a(n) ​ (b)   .

• 28%
• 25%
• 18%
• 7%
• increase
• decrease

Directions: Find the percent of change and classify as a percent increase or decrease. Round to the nearest tenth of a percent when necessary.

4. Karen’s old car got 25 miles per gallon. Her new car gets 31 miles per gallon. Percent of change: ​ (a)   . Increase or decrease: (b)  

• 19%
• 6%
• 31%
• Decrease
• 24%
• Increase

Ian worked 25 hours at the grocery store last week and 36 hours this week. The percent of change is ​ (a)   and it is a(n) ​ (b)   . Round to the nearest tenth of a percent when necessary.

• 31%
• 11%
• 28%
• 44%
• Increase
• Decrease

The football team scored 128 total points last season. This year, they scored 144 total points. Percent of change: ​ (a)   Increase or decrease: ​ (b)   .

• 11.1%
• Increase
• 10%
• 12.5%
• 16%
• Decrease