Percentage of Increase or Decrease

The rental for a television set changed from $80 per year to $8 per month. What is the percentage increase in the yearly rental?

Given G = ab, find the percentage increase in G when both a and b increase by 10%

A car dealer buys a car for $500 and then sells it for $640. What is the percentage profit?

What multiplier represents a 10% increase

• 110%

• 10%

• 1.10

• 1.1

What multiplier represents a 50% increase?

• 50%

• 1.5

• 0.5

• 150%

Write down the multiplier used to calculate a 15% increase.

• 15

• 1.5

• 1.15

• 1.015

What multiplier represents a 32.4% increase? (pick 2)

• 32.4%

• 1324%

• 1.324%

• 1.324

• 132.4%

What multiplier represents a 10% decrease?

• 10%

• 90%

• 110%

• 1.10

What multiplier represents a 30% decrease?

• 30%

• 70%

• 170%

• 0.3

Write down the multiplier used to calculate a 45% decrease.

• 0.45

• 0.55

• 45

• 55