Massachusetts 1099-K (not M-1099-K) from eBay selling

I'm trying to report a 1099-K form (not M-1099-K) I received as a result of selling used items on eBay. The gross receipt is a little over $1000, but Massachusetts has a lower threshold of $600 for 1099-K.

 

A number of threads here (for example, this one) suggest reporting it under Miscellaneous Income with a positive entry "Sales of Personal Property 1099-K" showing the income and a matching negative entry "Cost of Personal Property 1099-K" so that the net income is zero from this 1099-K.

 

My question is whether the fact I sold a few new items (in addition to the majority of used items) would complicate the situation. I still have no net income, in the sense that if I were to report this 1099-K in Schedule C and include the original receipt costs for all the used and new items under COGS, then I would come out negative.