Percent to Fraction
Fraction to Percent
Percent to Decimal
Decimal to Percent
Percent x Whole = Part
Find the Discount Amount
Find the Earnings
Simple Interest
Percent Change
500

5%

1/20

500

1/4

25%

500

45%

0.45

500

0.86

86%

500

What is 6% of 400? 

24

500

retail price: $25; discount rate: 20% 

$5

500

sales: $4,300; commission: 7%

$301

500

$5,000 at 9% for 2 yr. 

$900

500

original amount: 30; new amount: 36

20% increase 

750

95%

19/20

750

13/20

65%

750

919%

9.19

750

0.03

3%

750

16 is what percent of 80? 

20%

750

retail price: $350; discount rate: 30%

$105

750

sales: $25,500; commission: 12%

$3,060

750

$12,500 at 10.5% for 3 yr. 

$3,937.50 

750

original amount: 80; new amount: 24

70% decrease 

1000

72%

18/25

1000

7/16

43.75%

1000

5.88%

0.0588

1000

1.27

127%

1000

15% of what number is 21? 

140

1000

retail price: $875; discount rate: 24%

$210

1000

sales: $13,000; commission: 17.5%

$2,275

1000

$300 at 18% for 2 mo. 

$9 

1000

original amount: 75; new amount: 175 

133% increase 

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