Question

Joe received an hourly wage of $8.15. His boss gave him a 7% raise. How much does Joe make per hour now?

Answer 1

$8.7205 or $8.72

Explanation:

100% `rarr` $8.15
100% + 7% `rarr` ?

`(107%xx$8.15)/100` = $8.7205

Answer 2

`7%`increase = `(100+7)/100`
`8.15 = 815/100`
Now that his wage was $8.15, now his wage is,
`815/100` x `107/100`
`=$8.7025`