Percent is a ratio out of 100 (i.e. 32% = 32 / 100)

Examples:

1. Kevin needs $12 645 to go to fire school. If he is able to make 68% of that through his summer job, how much money did he make?

a) Set up the ratio

68	=	___X___
100		$12 645

b) Multiply both sides by $ 12 645

 

68($ 12 645)	=	X
100

c) Calculate X

 

X = $8598.60

 

Kevin made $8598.60 for fire school.

 

2. Greg and his friends had a car wash to raise money for their school band trip. Together they made $650.00 and Greg put $45.50 of that towards his trip. What percentage of the money earned, went towards Greg's band trip?

a) Set up a ratio

$ 45.50	=	_X_
$ 650.00		100

b) Multiply both sides by 100

 

$ 45.50(100)	=	X
$ 650.00

c) Calculate X

 

X = 7

 

Greg put 7% of the earnings from the car wash towards his trip.

 

 

 

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