Wamerwoods Company uses a periodic inventory system. It entered into the following purchases and sales transactions for March. For specific identification, units sold include 90 units from beginning inventory, 410 units from the March 5 purchase, 120 units from the March 18 purchase, and 200 units from the March 25 purchase. Wamerwoods Company uses a periodic inventory system. It entered into the following purchases and sales transactions for March. For specific identification, units sold include 90 units from beginning inventory, 410 units from the March 5 purchase, 120 units from the March 18 purchase, and 200 units from the March 25 purchase