If Comcast is upgrading its cable boxes and has 500 obsolete boxes in ending inventory. Beginning inventory and purchases Boxes Box cost Total cost Beginning inventory: January 1 15,800 $ 18 $ 284,400 March 1 6,800 19 129,200 June 1 2,800 23 64,400 September 1 1,650 26 42,900 December 1 1,000 35 35,000 28,050 $ 555,900 What is the cost of ending inventory using FIFO, LIFO, and the weighted-average method?