Okay. So, I did the math:
We're selling up to 3 shares.
Each share is worth 19.9% of the mining profits (profits are the total mined BTC, minus the expenses listed in the first post).
Each share costs $2023.034 USD (payable in the equivalent amount of BTC as set by bitpay). (The total cost of the miner, with shipping and everything was $10,166.)