3. (40%) Endeavor Corp. has provided the following sales forecast for the first half of the year: Assume that Endeavor Corp. sells a single product at a price of $20 per unit. The company's policy is to maintain an ending inventory each month equal to 30% of the next month's sales in units. The inventory at the end of December was 750 units. Required: Calculate the number of units to be produced each month from January to April