PERCENT TEAS

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Last updated 12:45 AM on 4/18/26
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6 Terms

1
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percent —> decimal

divide percent by 100,

25% —> 25/100 = 0.25

2
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find the percent of a number. ex: what is 20% of 50?

percent in decimal form x whole = part,

20% = 0.2,

0.2 × 50 = 10

3
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__ is what percent of __?

(part / whole) x 100 = percent,

15 is what percent of 60?

15/60 = 0.25

0.25 × 100 = 25%

4
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__ is __% of what number?

part / percent as a decimal = whole

10 is 20% of what number?

20% = 0.2

10/0.2 = 50

5
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percent increase/derease

((new - old) / old ) x 100

price went from $60 to $40,

40-60/60 = -15/60 = -0.25 × 100 = 25% decrease

6
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always remember

part = percent as a decimal x whole