Estes Company sells two types of computer chips. The sales mix is 30% (Chip A) and 70% (Chip B). Chip A has variable costs per unit of $20 and a selling price of $40. Chip B has variable costs per unit of $25 and a selling price of $55. The weighted average unit contribution margin for Estes is arcelona Bagpipes produces two models: Model 24 has sales of 200 units with a contribution of 35 each; Model 26 has sales of 75 units with a contribution margin of $37 each of sales de ncrease by 50 units, how much will profit change