I was looking for help to get the weighted average for the ending inventory.,

Montoure Company uses a perpetual inventory system. It entered into the following calendar-year 2015 purchases and sales transactions. Units Sold at Retail Date Jan. 1 Activities Beginning inventory Units Acquired at Cost 580 units @ $40 point 420 units @ $38. per Feb. 10 Purchase unit Mar. 13 Purchase 180 units @ $25 PS per unit Mar. 15 Sales 755 units @ $70 per unit per Aug. 21 Sept. 5 Sept. 10 Purchase Purchase Sales 190 units @ $45 pe unit 560 units @ $ 41 pe "'unit 750 units @ $70 per unit Totals 1,930 units 1,505 units