Gross revenue 236,900.00 Cost of goods Certificates 15,263.00 Parts 2,296.00 Total COGS 17,559.00 Gross profit 219,341.00 Expenses Rent 30,000.00 CAM 696.00 Technician 52,000.00 Payroll tax 4,706.00 WC insurance 2,080.00 Liability...