Business & farm

When I do this my entire cost for all goods purchased this year was $16,707 I put this into the "Cost of Purchases" box and it says I owe nothing now. Before when I split the inventory from the drop shipped items it says I owe $922.00 which is not right because I had no profit this year.

Should I just ignore the inventory beginning and end boxes and proceed with just the "Cost of Purchases"box? Like stated, when I split the cost between the inventory on hand and the dropped shipped items, it says I owe more for some reason which is ridiculous.