Well, paul, 80 were sold at the show. The next day, I awoke to an inbox full of requests for the poster. They were sold (by the band) for $30 at the show. I raised the price a whole $5 and added $8 for priority shipping... $43 total. To re-cap 30+5+8=43
Maybe some day when you aren't busy mouthing off to your peers about stuff you know nothing about you'll be able to the simple rules of arithmetic with basic business practices!