You work for a wholesale firm which distributes a single product. $57,600 is the value for opening inventory (1 Oct 2020). Closing inventory valuation conducted on 31 October 2020 , $80640 Purchases during the month were: Sales during the month were: The other cost besides the purchases were: Wages of staff 544,700 ; Premises purchased 542.750: Administrative expenses \$13,620: Selling and marketing costs \$17,890: Cost and freight for purchased inventory \$ 3,750: Carriage outwards $4,120 and Depreciation charges $11.250 Based on the clata provided what is the cost of sales for the month of October 2020