Make sure you understand the two alternatives. . The "make" means that KCSB assembles and ships all of its regular bicycles. The "buy" means that KCSB pays another firm to assemble and ship some of its regular bicycles and uses the freed-up resources to make and sell specialty racing bicycles. TIP: The analysis can be simplified by ignoring all irrelevant tiems - the revenue and the costs for the bicycles that are not being outsourced. Instead, just focus on 1) the make versus buy costs of the outsourced bikes, and 2) the contribution margin of the specialty racing bikes. King City Specialty Bikes (KCSB) produces high-end bicycles. Costs to manufacture and market the bicycles at last year's volume level of 2,000 bicycles per month are shown in the following table: $257.00 Variable manufacturing per unit Total fixed manufacturing Variable nonmanufacturing per unit $202,000 $70.00 $264,000 Total fixed nonmanufacturing KCSB expects to produce and sell 2,400 bicycles per month in the coming year. The bicycles sell for $570 each. An outside contractor makes an offer to assemble 700 of KCSB's bicycles per month and ship them directly to KCSB's customers as orders are received from its sales force. It will charge KCSB $165 per bicycle KCSB would provide the materials for each bicycle, but the outside contractor would assemble, box, and ship the bicycles. If KCSB accepts the offer, its variable manufacturing costs would be reduced by 45% for the 700 bicycles assembled by the outside contractor, and its variable nonmanufacturing costs for those 700 bicycles would be cut by 55%. In addition, it would be able to save $10,100 of fixed manufacturing costs; fixed nonmanufacturing costs would be unchanged. KCSB's marketing manager thinks that it could sell 85 specialty racing bicycles per month for $6,500 each, and its production manager thinks that it could use the idle resources to produce each of these bicycles for variable manufacturing costs of $5,400 per bicycle and variable nonmanufacturing costs of $450 per bicycle. REQUIRED (Note: Round unit cost computations to the nearest cent] What is the difference in KCSB's monthly costs between accepting the proposal and rejecting the proposal? (Note: If the costs of accepting the proposal are less than the costs of rejecting it, enter the difference as a positive nurnber; if the accept costs are more than the reject costs, enter the difference as a negative nurnber.)