A microphone factory wants to schedule order lot sizes for microphone grid. The anticipated demand for this item over the next 12 months start from Jan 2022 until Dec 2022 is 81.300, 23.040, 12.396, 15.060, 30.031, 802, 24.091, 31.010, 9.020, 25.080, 16.087, and 17.019 items. Current inventory of this item is 12.758 items and ending inventory at last period should be 3.003 items. Assume a holding cost is $1,56 per period and setup cost is $80,20. Calculate the cost and find the optimal solution for order policy?