Exercise 23-5 DeWitt Industries has adopted the following production budget for the first 4 months of 2017 Month Month January February 10,230 March 8,200 April Units 5,450 4,290 Each unit requires 5 pounds of raw materials costing $4 per pound. On December 31, 2016, the ending raw materials inventory was 10,230 pounds. Management wants to have a raw materials inventory at the end of the month equal to 20% of next month's production requirements Prepare a direct materials purchases budget by month for the first quarter