Inventory Valuation vs COGS

I've been tracking my inventory costs with the intention of using the accrual method (COGS) rather than cash method.

 

At what point do I enter that number when filling out self employment expenses?

 

I'm assuming that when it asks for BOY inventory and EOY inventory, I type in what I currently have on hand at those points in time (my BOY was 0 and my EOY was $8887).

 

Do I put in COGS ($1263) when it asks for Cost of Inventory? Or is that supposed to be my $8887? 

 

I know my COGS is a relevant number... Just don't know where to put it. Help!