Sailmaster makes high$-$performance sails for competitive windsurfers. Below is information about the inputs and outputs for one model, the Windy $2000.$

Units sold $1,231$

Sale price each $ $1,715$

Total labor hours $46,452$

Wage rate $ $12$ per hour

Total materials $$61,150$

Total energy $ $4,009$

Calculate the productivity in sales revenue$/$labor expense.

Note: Round your answer to $2$ decimal places.