How to calculate amount of tokens you should expect on your account?
(Amount of ETH that you send to purchase the tokens – Max transaction fee in ETH) * ETH exchange rate in $
The payment scheme of the token purchase is following:
Amount of ETH that you send to purchase the tokens – Actual transaction fee in ETH -> Investment (you get tokens, ABX) + ETH returning to your wallet
Max transaction fee in ETH – Actual transaction fee in ETH -> back to your wallet (ETH)