Percent Increase Decrease Using a Multiplier

Mrs. Ciampa had 27 students in her class last year and this year she had 30 students in her math class. What is the percent of change?

• 24%

• 10%

• 11%

• 50%

Cody weighed 110 pounds when he started 6th grade but now weighs 150 pounds as a 7th grader. What is the percent of increase in his weight?

• 36%

• 26%

• 33%

• 38%

The original price of a camera was $50 and the sale price this week is $38. What is the percent of change in the price of the camera?

• 24%

• 12%

• 20%

• 22%

Susie got a raise.  She was making $8.75 an hour.  Now she is making $9.50.  What is the percent of change?

• 6% Increase

• 7% Increase

• 8% Increase

• 9% Increase

Kate had $2,251.35 in her bank account. Currently, she has $1,975.86 in her account. Find the percent of change rounded to the nearest percent.

• 12% decrease

• 12% increase

• 14% increase

• 14% decrease

Ann works in a supermarket for $10.00 per hour. She received a raise to $12.00. What is the percent of change in her hourly wage?

• Increase 16.67%

• Decrease 16.67%

• Increase 20%

• Decrease 20%

A grocery store has a 20% markup on bottle of soda.  The bottle of soda costs the store $1.25. Find the selling price. Round to nearest cent if necessary.

• $1.5

• $1.50

• $.25

• $1.45

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%

When you increase an amount by 10%, to find the new amount in one step, what should you multiply the original amount by?

• 0.1

• 10%

• 1.01

• 1.1

When you increase an amount by 25%, to find the new amount in one step, what should you multiply the original amount by?

• 0.25

• 25%

• 1.25

• 0.75