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Basic Econ Math Review

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PERCENTAGES

Converting between Fractions Decimals andPercentages

Finding a Percentage

Proit ! "oss

Reverse Percentages#riting as a Percentage

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C$N%ERT&NG BET#EEN F' D ! P

Converting a (ercentage )*+,- to a raction

*+, means *+ o.t o ever/ 0++

Don1t orget to sim(li/ i (ossible

100

40

23

=

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C$N%ERT&NG BET#EEN F' D ! P

Converting a (ercentage )45,- to a decimal45, means i6e6 45 0++

Remember b/ 0++ 7

So,67% = 0.67

0++

45

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C$N%ERT&NG BET#EEN F' D ! P

Converting a decimal )6*8- to a (ercentage

Reverse the (rocess i6e6 M.lti(l/ b/ 0++ )6*8-

So, 0.43 = 43%

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C$N%ERT&NG BET#EEN F' D ! P

Converting a raction )892- to a (ercentage

Convert to a decimal irst then to a (ercentagei6e6

Then' change to a (ercentage' : b/ 0++

So, = 0.6 = 60%

28 46+++682=

2

8

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Remember 0+, ;

To ind we divide b/ 0+

Also 0, ;

And to ind we divide b/ 0++

F&ND&NG A PERCENTAGE 03+

;66 boys

Find 3?, o 4@+

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PR$F&T ! "$SS

3 t/(es o .estions

T/(e 0