The Ace Battery Company has forecast its sales in units as follows: January February March April 1,000 May 850 June 808 July 1,300 1,550 1,700 1,400 Ace always keeps an ending inventory equal to 120 percent of the next month's expected sale (January's beginning inventory) is 1,200 units, which is consistent with this policy. Materials cost $11 per unit and are paid for in the month after production. Labour cost is $4 per incurred. Overhead costs are $7,000 per month. Interest of $8.200 is scheduled to be paid in $13,400 will be paid in June. a. Prepare a monthly production schedule for January through June (Enter all yolueens nositi