Presented below is information related to Tamarisk Enterprises. Jan. 31 Feb. 28 Mar. 31 Apr. 30 Inventory at cost $17,400 $17,516 $19,720 $16,240 Inventory at LCNRV 16,820 14,616 18,096 15,428 Purchases for the month 19,720 27,840 30,740 Sales for the month 33,640 40,600 46,400 Part 1 From the information, prepare (as far as the data permit) monthly income statements in columnar form for February, March, and April. The inventory is to be shown in the statement at cost; the gain or loss due to market fluctuations is to be shown separately (using a valuation account).