Sailmaster makes high-performance sails for competitive windsurfers. Below is information about the inputs and outputs for one model, the Windy 2000. Units sold Sale price each Total labor hours Wage rate. Total materials Total energy 1,236 $ 1,719 46,574 Productivity $ 11 per $60,550 $ 4,050 hour Calculate the productivity in sales revenue/labor expense. Note: Round your answer to 2 decimal places.