Presented below is information related to Flint Enterprises.

Jan. 31 Feb. 28 Mar. 31 Apr. 30

Inventory at cost $16,950 $17,063 $19,210 $15,820

Inventory at LCNRV 16,385 14,238 17,628 15,029

Purchases for the month 19,210 27,120 29,945

Sales for the month 32,770 39,550 45,200

(a)

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).