1. Use FIFO on the following information to calculate the value of ending inventory and the cost of goods sold of March and gross profit. Then find Inventory Turnover Ratio and Days sales in Inventory (DSI) 9 Mar 1 Beginning Inventory 5 Purchase Sale Purchase Purchase Sale 29 Sale 68 units @ $15.00 per unit 140 units @ $15.50 per unit 94 units @ $19.00 per unit 40 units @ $16.00 per unit 78 units @ $16.50 per unit 116 units @ $19.50 per unit 62 units @ $21.00 per unit 2- Forecast demand for Year 4 in below table using the following approaches: 9 + b YEAR (X) DEMAND (Y) 550 610 650 (1) a three-year moving average; (2) a three-year weighted moving average using 0.5 for Year 3, 0.3 for Year 2 and 0.2 for Year 1 (3) exponential smoothing with a =0.3, and assuming the forecast for Year 1 - 500. (4) liner regression