So, we’ve found out that $960 is 3% of x number of dollars (which are his total sales for that particular week) So now we set up an equation like this:

$960 = .03x

x= total sales

Solve for x by dividing 960 by .03. After doing that, we find that x = 32,000

So his total sales for the week would have to be $32,000 for him to earn $1,220

Well, first make an equation: 260+.03x=1,220

(.03 is the percentage expressed in decimals; I just multiplied it by 1/100)

x is the total sales in dollars

First, move the 260 to the other side: .03x=1220-260

Then divide by .03: x=(1220-260)/.03

Plug the math into a calculator, and you’re done 😀