Calculating Percent Discounts from Sale and Retail Prices

$30

$50

$20

$40

$20

$30

$50

$40

Original amount over new amount

Original amount over amount of change

Amount of change over original amount

New amount over original amount

By dividing the new amount by the original amount

By subtracting the new amount from the original amount

By multiplying the new amount by the original amount

By adding the new amount to the original amount

$5

$10

$20

$15

1/2

1/3

1/4

1/5

0.20

0.25

0.35

0.30

Move the decimal point one space to the left

Move the decimal point two spaces to the left

Move the decimal point two spaces to the right

Move the decimal point one space to the right

30%

25%

35%

20%