Number Increased or Decreased by a Percent

Original Quantity: 50

New Quantity: 38

Calculate the percent change.

• 24% decrease

• 19% decrease

• 12% decrease

• 25% increase

Your class is raising money to have a class trip at the end of the year. You began the year with $1,500. Now, you have $1,650 in the account. What is the percent increase for the money the class has raised?

• 10%

• 9.2%

• 13%

• 18%

Yesterday, I ran 5 miles. Today, I ran 3.7 miles. Does this scenario represent a percent increase or percent decrease?

• Percent increase

• Percent decrease

a special ratio that compares a number to 100 using the % symbol; a rate per 100

• rate

• percent

• ratio

• unit

A percent decrease is the percent change where something loses value, or goes_________

• change

• percent

• up

• down

Which equation shows the percent of increase from x to y?

• x = 1.25 y

• x = 0.8 y

• y = 1.25 x

• y = 0.8 x

Last week, the price of oranges at the farmer's market was $1.75 per pound. This week, the price decreased by 20%. What is the price of oranges this week?

• $2.10

• $1.40

• $1.55

• $0.35

This year, a herd of bison had a 10% decrease in population. If there are 540 bison in the herd this year, how many bison were there last year?

• 480

• 530

• 486

• 600