We have the following:
We must calculate how much you earn in commission in the last week, you must multiply the value sold by the percentage, as follows
[tex]7100\cdot\frac{12}{100}=852[/tex]Knowing that a year has a total of 52 weeks, the total earned in 2011 would be:
[tex]852\cdot52=44304[/tex]Which means that a week he earns a total of $ 852 and a year a total of $ 44,304