Answer the following questions using the information below: The following information is for the Jeffries Corporation: Product A: Revenue $16.00 Variable Cost $12.00 Product B: Revenue $24.00 Variable Cost $16.00 Total fixed costs $75,000 Assume the sales mix consists of three units of Product A and one unit of Product B. If the sales mix shifts to four units of Product A and one unit of Product B, then the weighted-average contribution margin will ________.

1)decrease per unit

2)cannot be determined from this information

3)increase per unit

4)stay the same