Determine the amount of manufacturing/product costs given the following information: Depreciation on a factory building Telephone expense in factory office Telephone expense in sales showroom Factory foreman's salary Maintenance costs for the factory Maintenance costs for the sales showroom $5,700 $1,080 $1,050 $5,400 $1,400 $ 740 Multiple Choice $13,580 O $15,370 O $10,780 O O $12,920