In: Accounting
Journal Entries:
| 1) Journal Entries under FIFO Inventory Valuation Method | |||
| Date | Account Titles and Explanation | Debit | Credit | 
| Jan. 1 | Merchandise Inventory (40 units * SAR 10 per unit) | SAR 400 | |
| Accounts Payable | SAR 400 | ||
| (To record the purchase of merchandise on account) | |||
| Fedb. 5 | Merchandise Inventory (40 units * SAR 12 per unit) | SAR 480 | |
| Accounts Payable | SAR 480 | ||
| (To record the purchase of merchandise on account) | |||
| Mar. 16 | Accounts Receivable | SAR 750 | |
| Sales Revenue (50 units * SAR 15 per unit) | SAR 750 | ||
| (To record the sales made on account) | |||
| Cost of Goods Sold | SAR 520 | ||
| Merchandise Inventory ([40 units * SAR 10 per unit] + [10 units * SAR 12 per unit]) | SAR 520 | ||
| (To record the cost of goods sold) | |||
| 2) Journal Entries under LIFO Inventory Valuation Method | |||
| Date | Account Titles and Explanation | Debit | Credit | 
| Jan. 1 | Merchandise Inventory (40 units * SAR 10 per unit) | SAR 400 | |
| Accounts Payable | SAR 400 | ||
| (To record the purchase of merchandise on account) | |||
| Fedb. 5 | Merchandise Inventory (40 units * SAR 12 per unit) | SAR 480 | |
| Accounts Payable | SAR 480 | ||
| (To record the purchase of merchandise on account) | |||
| Mar. 16 | Accounts Receivable | SAR 750 | |
| Sales Revenue (50 units * SAR 15 per unit) | SAR 750 | ||
| (To record the sales made on account) | |||
| Cost of Goods Sold | SAR 580 | ||
| Merchandise Inventory ([40 units * SAR 12 per unit] + [10 units * SAR 10 per unit]) | SAR 580 | ||
| (To record the cost of goods sold) | |||
| FIFO | LIFO | |
| Sales Revenue | SAR 750 | SAR 750 | 
| Less: Cost of Goods Sold | SAR 520 | SAR 580 | 
| Gross Margin | SAR 230 | SAR 170 |