When preparing a direct materials budget, the required purchases of raw materials in units equals: Multiple Choice raw terials needed to meet the production schedule desired ending inventory of raw materials-beginning inventory of raw materials. O raw materials needed to meet the production schedule-desired ending inventory of raw materials-beginning inventory of raw materials raw materials needed to meet the production schedule-desired ending inventory of raw materials + beginning inventory of raw materials. raw materials needed to meet the production schedule desired ending inventory of raw materials + beginning inventory of raw materials