How to do this problem fast
posted by Angela .
Sara works as a data entry operator. her current wage is $8.50 per hour. After her excellent performance rating, her new hourly rate is $9.18. What is the percent of increase in her wages?

How to do this problem fast 
Annie
8%.
Because > percentage change = newold/old x 100
so 0.68/8.50 x100
Hope this helps :)
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