Preston Milled products currently sells a product with a variable cost per unit of $21.50 and a unit selling price of $39.50. At the present time, the firm only sells on a cash basis with monthly sales of 320 units. The monthly interest rate is 1.2 percent. What is the switch break-even point if the firm switched to a net 30 credit policy? Assume the selling price per unit and the variable costs per unit remain constant.

335 units

329 units

333 units

331 units

332 units