6. Belfast Ltd. sells one product. Presented below is information for January for Belfast Ltd. Nov 1 Inventor 300 units at 10 each y 50628 Purchase 200 units at 11 each 10 Sale 400 units at 16 each 15 Purchase 400 units at 10.50 each 21 Sale 450 units at 17 each 30 Purchase 350 units at 10.80 each Belfast uses the FIFO cost flow assumption. All purchases and sales are on account. Instructions a) Assume Belfast uses a periodic system. Prepare all necessary journal entries, including the end-of-month closing entry to record cost of goods sold. A physical count indicates that the ending inventory for November is 400 units. b) Assume Belfast uses a perpetual system. Prepare all necessary journal entries.