Croquet, Inc. currently manufactures a wicket as its main product. The costs per unit are as follows: Direct materials and direct labor $13 Variable overhead 7 Fixed overhead 10 Total $30 Saran Company has contacted Croquet with an offer to sell it 5,000 of the wickets for $17 each. Fixed costs of $4 per unit is unavoidable. Should Croquet make or buy the wickets, why