4) vaughn, inc solo 14,000 units last year for $14,000 each. vorable costs por Unit were $28.00 for direct moleras $28.00 for direct labor, ond 11.00 for variable overhead fika osts were $36.000 in memuttering overned and boos in nonmanufacturing 24545 FIVE STAR a.) Uhat is total controuten morgin? Tatal contribution margin bunot sunt contribution margin? unit contribution morgin FIVE STAR c) what is the contribution margin ratio. contribution margin Rato .) f sales in case by 4.000 units by how much will Profits increase? Profit increase