Jun. 1 Beginning merchandise inventory 12 Purchase 20 Sale 15 units @ 4 units @ 6 units @ 15 units @ 16 units @ $ $ $ $ $ 21 each 23 each 30 each 24 each 30 each 24 Purchase 29 Sale Requirements Complete the following for the month for each inventory costing methodsuming a periodic inventory system (For weighted average c o nsFound per un costs to the nearest cent and other words to the nearest Requirement 1 Requirement. Requirement Weighted Average Se Revenue Cost of Goods Sold Gross Profit