Yes, it'll come out of what you receive when that invoice is paid. For 100k and 15k sat fee:

The invoice is for 100k. You receive 85k, a channel will open for about 200k (you get extra inbound potential with no setup fee).  

 Ok, it's clear how it would be. 
I will try on Sunday morning when the fees of the chain may drop a little more and take advantage that now are dynamic 🤭