The Regal Cycle Company manufactures three types of bicycles-a dirt bike, a mountain bike, and a racing bike. Data on sales and expenses for the past quarter follow Sales Variable manufacturing and selling expenses Contribution margin Fixed expenses: Advertising, traceable Depreciation of special equipment Salaries of product-line managers Allocated common fixed expenses Total fixed expenses Net operating income (loss) "Allocated on the basis of sales dollars Total $ 930,000 460,000 Dirt Bikes $ 266,000 111,000 Mountain Bikes $ 408,000 470,000 155,000 198,000 210,000 Racing Bikes $ 256,000 151,000 105,000 69,700 8,400 40,900 20,400 43,200 20,300 7,500 15,400 115,600 40,500 38,400 36,900 186,000 5,200 414,500 122,200 $ 55,500 $ 32,800 168,400 $ 41,600 51,200 123,900 $ (18,900) 81,600