He has prepared income statements for recent months, which he plans to use in conducting cost analysis. Sales 80,000 90,000 Cost of goods sold 48,000 54,000 Gross profit 32,000 36,000 Operating expenses: Selling 8,500 8,800 Administrative 9,200 9,400 Total 17,700 18,200 Net Profit 14,300 17,800 Required: 

1. Determine the fixed and variable components of cost of goods sold, selling expenses, and administrative expenses 

2. Compute income if sales amount to Php 100,000.