Sailmaster makes high performance sails for competitive windsurfers. the following is information about the inputs and outputs for one model, the Windy $2000.$ units sold$-1,211,$ sales price each$-1,694,$ total labor hours$-46,712,$ wage rate$-$ $$13$ per hour, total materials$-$$$60,150,$ total energy$-4,100.$ Calculate the productivity in sales revenue$/$labor expense