Maple Wood Company manufactures standard and deluxe wooden tables. The standard table is sold at $80 each, and the deluxe table is sold at $150 each. The variable cost of making the standard table is $50 each. It costs an extra $30 to make the deluxe table. It takes 10 labor hours to make 50 standard tables and 15 labor hours to make 50 deluxe tables. There are 3,000 hours of labor time available for production each week. The maximum weekly sales for the standard and the deluxe tables are 1,200 and 400 units, respectively. Fixed production costs total $500,000 per year. All selling costs are fixed.

Required: (a) Calculate the optimal production level in number of units for each product. (b) Prepare the ledgers for both types of tables showing all necessary entries. (c) Compute the total contribution margin for the company.