Retirement tax questions

I had a small profit of roughly $400.  The problem with the 1099-k from TicketMaster is that they do not report your cost basis (the price you paid plus the commission they take) because they do not know.  I was able to enter my cost basis + their commission when I followed the instructions in the original reply (JamesG1) provided.  This translated to the schedule D form 8949.  I used deluxe, not premiere, but I did have to click on "cost basis not reported" on the form when the error popped up, and this triggered me to having to send in my form 8949 after e-filing everything else.  Perhaps the premiere version would've made this a bit easier, I'm not sure.  One thing though, this is a nightmare that millions of people will be experiencing because of this $600 land grab.  Time to go back to cash!