The following inventory transactions took place for Sandhill Ltd. for the year ended December 31, 2020: Cost/ Selling Price Date Event Quantity Jan 1 opening inventory 21,000 $42.50 Jan 5 sale 5.000 77.80 Feb 15 purchase 37,000 45.75 Mar 10 purchase 11,000 46.00 May 20 sale 45.000 77.80 Aug 22 purchase 16,000 43.00 Sep 12 sale 23.000 77.80 Nov 24 purchase 11,000 51.25 Dec 5 sale 17,200 77.80 Calculate the ending inventory balance for Sandhill Ltd., assuming the company uses a periodic inventory system and the weighted average cost formula. Also calculate the per-unit cost of the last item sold. (Round weighted average cost and unit costs of next unit to be sold to 2 decimal places, e.g. 52.75 and ending inventory to O decimal places, e.g. 5,275.) Ending inventory $ Unit cost of the last item sold $