sheridan toys' management is considering eliminating product a, which has been showing a loss for several years. the company annual income statement, is as follows: sales variable expenses contribution margin advertising expense depreciation expense corporate expenses total fixed expenses operating income a $2,289,000 $1,405,000 1,689,000 $600,000 $505,000 17,700 93.900 $616,600 b $(16,600) 600,700 $804,300 $426,000 11,000 82,100 $519,100 $285,200 c $1,807,800 1,084,300 $723,500 $522,000 20,100 105,600 $647.700 $75,800 total $5,501,800 3.374.000 $2,127,800 $1,453,000 48,800 281,600 $1,783,400 $344,400