Given $273,904 in food costs and $848,000 in food revenues, calculate the food cost percentage. O a. 67.70% O b. 35.64% O c. 14.77% O d. 32.30% Given a net income of $82,517 and total sales of $1,231,600, calculate profit margin. O a. 6.70% O b. 14.93% O C. 85.07% d. 68.85%