Click on "Income", then move the cursor to "Self Employment" then select "Self Employment Summary" from the drop down menu. 

Click "Edit" for the business you wish to edit.

Click "Income and Inventory" from the list.

On the "Income" screen, scroll down and click "Skip Income."

On the "Valuing Inventory" screen, complete the sections that apply.  By at least including the Opening Inventory, Purchases, and Closing Inventory, the software will calculate the COGS.

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