Compute the total product cost per unit for each model. For each model, compute the gross profit per unit (selling price per unit minus product cost per unit). (A negative gross profit should be indicated with a minus sign.) Additional production information for two models of its air conditioners follows. 1a. Compute departmental overhead rates and determine overhead cost per unit for each model. 1b. Use machine hours to allocate budgeted Assembly costs and use direct labor hours to allocate budgeted Finishing costs. 2. Compute the total product cost per unit for each model. 3. For each model, compute the gross profit per unit (selling price per unit minus product cost per unit). Use machine hours to allocate budgeted Assembly costs and use direct labor hours to allocate budgeted Finishing costs. (Round "Hours per unit" to one decimal place.) Compute departmental overhead rates and determine overhead cost per unit for each model