Decimal to Percents
Percent Increase
Percent Decrease
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Real World Problems
100

.25

25%

100

10 to 44

340%

100

45 to 40

11%

100

What is the amount borrowed or deposited that earns interest?

principal

100

What do I pay with 25% discount on $140?

$105

200

.4

40%

200

25 to 150

500%

200

50 to 10

80%

200

What is the tax on a $18.50 hat if the rate is 6%?

$1.11

200

What do I pay with 10% off $500?

$450

300

3.5

350%

300

55 to 340

518%

300

120 to 55

54%

300

How much is in a savings account with $600 and a 2% interest rate after 3 years?

$636

300

What do I pay with a 30% markup on $80 shoes?

$104

400

1.33

133%

400

$56.66 to $89.99

59%

400

450 to 25

94%

400

A salesperson earns $8 per hour plus 5% commission on sales.  She worked 40 hours & had $520 in sales.  What are her total earnings?

$346

400

What do I pay with an 80% markdown on a $60 shirt?

$12

500

.552

55.2%

500

$24.50 to $30.00

22%

500

140 to 2

99%

500

A scale can vary by 0.1% of an item that weighs 250 grams.  What is the range of acceptable weights?

249.75 to 250.25 grams

500

My restaurant bill was $35.78. If I left a 30% tip, what is the total I pay?

$46.51

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