Percentage Increase and Decrease Equations

60% decrease to 42

• 10

• 18.2

• 16.8

• 20.5

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

• 0.45

• 0.55

• 45

• 55

Write down the multiplier used to calculate a 8% decrease.

• 0.8

• 0.08

• 9.2

• 0.92

Decrease £220 by 20%.

• £170

• £176

• £200

• £44

Decrease £40 by 20%

• £9

• £21

• £32

• £20

Increase 150 by 40%.

• 200

• 190

• 250

• 210

Reduce 360 by 10%

• 342

• 324

• 328

• 300

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

• 32.4%

• 1324%

• 1.324%

• 1.324

• 132.4%

What multiplier represents a 30% decrease?

• 30%

• 70%

• 170%

• 0.3

Increase £2400 by 9%