Show me the steps to solve On april $1$st$,$ an automobile manufacturer had no beginning inventories. It purchased $8,400$ batteries at a cost of $$80$ per battery. it withdrew $7,800$ batteries from the soreroom during the month. Of these, $50$ were used to replace batteries in cars being used by the company's traveling sales staff. The remaining batteries withdrawn from the storeroom were installed in cars being manufacturd by the company. of the cars completed during the month, $20$ percent were unsold at april $30$th$.$ How much of the total battery cost would be included in raw materials at the end of aprl?