Calculate levels of profitability for a multiple-step income statement and the gross profit ratio. Below are amounts found in the income statements of three companies. Sales Revenue $32,000 35,000 40,000 Company Henry Grace James Cost of Goods Sold $ 4,800 24,500 24,800 Operating Expenses $ 5,000 13,100 3,000 Non-operating Expenses $2,000 7,000 Income Tax Expense $2,000 3,000 Exercise 6-16A Part 1 Required: 1. For each company, calculate (a) gross profit, (b) operating income, (c) income before income taxes, and (d) net income. (Negative amounts should be indicated by a minus sign.)