Can you please show the work? And explain where you are getting the numbers from. Please write the formulas down, I actually want to be able to do it myself in the future.

Maria's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Maria's purchases of Xpert snowboards during September is shown below. During the same month, 120 Xpert snowboards were sold. Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 25 $40 $1,000 Sept. 12 Purchases 45 42 1,890 Sept. 19 Purchases 15 45 675 Sept. 26 Purchases 50 46 2,300 Totals 135 $5,865 Additional data regarding Maria's sales of Xpert snowboards are provided below. Assume that Maria's uses a perpetual inventory system Date Units Unit Price Total Revenue Sept. 5 Sale 10 $ 182 $ 1.820 Sept. 16 Sale 50 182 9.100 Sept. 29 Sale 60 215 12,900 Totals 120 $ 23,820 Calculate moving average cost at Sept 1, 5, 12, 16, 19, 26 & 29. (Round answers to 2 decimal places, eg. 1.25.) September 1 $ 40 September 5 $ 40 September 12 $ 41.50 September 16 $ 41.50 September 19 43.60 September 26 $ 45.2 September 29 $ 45.2 Compute ending inventory at September 30 using FIFO, LIFO, and moving-average cost. (Round average-cost per unit to 2 decimal places, eg. 12.50 and final answer to decimal places, eg. 1,250.) FIFO LIFO MOVING-AVERAGE COST The ending inventory $ 690 $ 625 $ 678 (b) Compare ending inventory using a perpetual inventory system to ending inventory using a periodic inventory system, Periodic Perpetual Ending Inventory FIFO $ Ending Inventory LIFO $