Comics Plus has a current production level of 200,000 comics per month. Unit costs at this level are: Direct materials $0.125 Direct labour 0.200 Variable overhead 0.075 Fixed overhead 0.100 Marketing - Fixed 0.100 Marketing/distribution - Variable 0.200 Current monthly sales are 180,000 units. Printers Ltd. has contacted Comics Plus about purchasing 15,000 units at $1.00 each. Current sales would not be affected by the special order, and variable marketing/ distributing costs would not be incurred on the special order. What is Comics Plus' change in profits using the contribution margin format if the order is accepted? $6,000 decrease $6,000 increase $3,000 increase $9,000 decrease $9,000 increase