Calculate moving average cost at Sept 1,5,12,16,19,26&29. (Round answers to 2 decimal places, e.g. 1.25.) September 1 \$ September 5$ September 12$ September 16$ September 19$ September 26$ September 29 \$ Marigold's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Marigold's purchases and sales of Xpert snowboards during September is shown below. During the same month, 188 Xpert snowboards were sold. Additional data regarding Marigold's sales of Xpert snowboards are provided below. Assume that Marigold's uses a perpetual inventory system