Understanding Percent of Change

What does the percent of change indicate?

• The absolute value of a quantity

• The rate at which a quantity changes

• The original value of a quantity

• The final value of a quantity

If a price increases from 9 to 12, what is the first step to find the percent of increase?

• Divide the new price by the old price

• Subtract the old price from the new price

• Multiply the old price by the new price

• Add the old price to the new price

How do you convert a decimal to a percentage?

• Divide by 100

• Multiply by 100

• Subtract 100

• Add 100

What is the percent of increase if a price changes from 10 to 12?

• 10%

• 15%

• 20%

• 25%

What is the first step in calculating the percent of decrease?

• Add the new amount to the original amount

• Divide the new amount by the original amount

• Subtract the new amount from the original amount

• Multiply the new amount by the original amount

If a pen's price decreases from 10 to 6, what is the percent of decrease?

• 60%

• 30%

• 40%

• 50%

How do you determine the amount of decrease?

• Subtract the new amount from the original amount

• Add the new amount to the original amount

• Divide the new amount by the original amount

• Multiply the new amount by the original amount

What is the final step in converting a decimal to a percentage?

• Divide by 10

• Multiply by 10

• Add a percent sign

• Subtract a percent sign

What does a 40% decrease indicate?

• The new amount is 40% of the original

• The original amount is 40% less than the new

• The new amount is 40% less than the original

• The original amount is 40% more than the new

If a price decreases from 10 to 6, what is the decimal representation of the decrease?

• 0.5

• 0.2

• 0.3

• 0.4