Waterway Inc. is a retailer operating in British Columbia. Waterway uses the perpetual inventory system. All sales returns from customers result in the goods being returned to inventory; the inventory is not damaged. Assume that there are no credit transactions; all amounts are settled in cash. You are provided with the following information for Waterway Inc. for the month of January 2022.DateDescriptionQuantityUnit Cost or Selling PriceJanuary1Beginning inventory100 $21 January5Purchase148 24 January8Sale114 36 January10Sale return10 36 January15Purchase55 26 January16Purchase return5 26 January20Sale94 41 January25Purchase26 28Calculate the Moving-average cost per unit at January 1, 5, 8, 10, 15, 16, 20, & 25