*If this has already been answered I'm very sorry, direct me there and I'll delete this.*

Hello all,
I'm Ashley. I have a few questions about card games and Kickstarter fulfillment.
I made a card game, 90 cards total, 120 total with the extension pack.
I'm having a hard time understanding how I'd see a profit if I crowdfunded on KS because most of it would go to order fulfillment. I've been using the Game Crafters and for 1 deck to ship to me it's about $14.59 not including the deck box. I know the the price goes down for buying in bulk but I can't estimate how many people will pledge.
I don't want to make a mess of things as this is my first card game. Is there any formula I should be using or a certain way to go about this?
ANY help would be wonderful.
Again, I'm sorry if a similar question has been asked.