Laker Company reported the following January purchases and sales data for its only product. For specific identification, ending inventory consists of 380 units from the January 30 purchase, 5 units from the January 20 purchase, and 25 units from beginning inventory.

January 1 Beginning inventory 240units@$ 16.50=$ 3,960

January 10Sales190units@$ 25.50

January 20Purchase170units@$ 15.50=2,635

January 25Sales190units@$ 25.50

January 30Purchase380units@$ 15.00=5,700

Totals790units$ 12,295380units

Compute gross profit for the month of January for Laker Company for the four inventory methods using the periodic inventory system.