eriodic inventory by three methods he beginning inventory for Midnight Supplies and data on purchases and sales for a three-month period are shown below: 1. Determine the inventory of Match 31 and the cost of goods eold for the thee-month, penod, uning the firstifi, first eut method and the periodic inventory wster Itventiory, March 31 . Determirie the invertory on March 31 and the cost of goods sold for the three-month period, using the first-in, first-out method and the penodic invertory system; the weighted average bitit cont to the nearet cent. imis sugh