Answer:
62.5% or 63%
Step-by-step explanation:
He has $8. To find the percent of money that he spent on the purchase you put the amount spent over the total amount.
In this case, he spent $5. You would put that $5 over the $8, 5/8. When you divide, you get 0.625. To get a percent, you would multiply this number by 100. You end up with 62.5, or 63 if you round up.