If your net pay is $320.74. you filed single and exempt on your w2 then what is your gross pay if?

is this every two weeks or monthly and how many hours did you work if this is just the way you wrote it lets say about 40 hours you'd make 290 dollars so it would be a total of so i'm thinking comes out about 44 hours that was worked and being exempt you don't have to have taxes held out except a couple of dollars for social security fica and workmanscomp so your protected if your injured