#22: PAYROLL DEDUCTIONS: Peter Phelps is a representative for Delta International Machinery and is paid $675 per week plus a commission of 2% on sales. His sales last week were $17,240. (Assume the SDI rate is 1% and that earnings will not exceed $31,800.) Find the amount of (a) His Social Security tax (b) His Medicare tax (c) His state disability insurance deduction for the pay period