Inits furst month of ogerations. Metlock, inc made three purchases of merchandise in the following sequence: (1) 240 units at $6. Current Attenpt in Progress. (2) 480 units at 57 and (3)440 units at $8 Assuming these are 180 unts on hand, compute the cost of theending inventory under the (a) FIFO method and (b) LIFO method. Mebockuses a periadic imentocy system