If rose earns a 5% commision on what he sells how much does he earn on 60$?

Well, if we look at a calculator and ask, what is 5% of 60$ we get the answer of 3 dollars.

60 - 5% = 57 therefor we know it removes 3 dollars. So the commission is 3 dollars.

It is a percent with money involved too divide and you should have your answer