Percent of Change: Find the Original Amount Word Problems

The number of people signed up for a bus trip increased from 32 to 45. What is the percent increase? Round to the nearest percent.

• 52%

• 41%

• 42%

• 45%

Find each percent decrease. Round to the nearest percent.
From $80 to $64 

• 35%

• 10%

• 20%

• 25%

Find the percent of change.

From 20 miles to 11 miles.

• 45% decrease

• 45% increase

• 82% decrease

• 82% increase

The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter? 

• 35%

• 25%

• 30%

• 20%

Jason saved 30% of the money he got for his birthday. If he saved $12, how much money did he get for his birthday?

Finding the original amount given the percentage: If 25% of a number is 75, what is the original number?

• 100

• 300

• 50

• 150

Marcus went on a diet and lost weight. He now weighs 197.4 pounds, which is 84% of his original weight. How much did he weigh at the beginning of the diet?

• 200 lb

• 235 lb

• 225 lb

• 250 lb

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

• 25%

• 50%

• 75%

• 100%

Finding the original quantity given the percentage and the result: If 20% of a quantity is 80, what is the original quantity?

• 400

• 120

• 200

• 60

A company produced 600 parts during first shift. The second shift produced 564 parts. What is the percent change from first to second shift?

• 0.1%

• 10%

• 0.06%

• 6%