scott salman a travel agent is paid on a variable commission , is married, and claims four withholding allowances. he receives 3% of the first 20,000 in sales, 4% of the next 10,000 in sales , and 6% of all sales over 30,000 . this week he has sales of 45,500 and the following deductions: FICA , medicare , federal withholding, state disability insurance , state withholding , a retirement contribution of 45, a savings bond of 50, and a charitable contributions of 20. find his net pay after subtracting all his deductions.