This game, sadly, pisses me off. The convertion rates are super difficult to understand. Especially when everything goes to Commons. That I don't get. It's too ahrd for me :(
ok i got u, maybe get a calc pulled up on the side, it helps, anyway you get the regular value of the currency, then multiply that by the conversion rate, so if it says 0.5, you multiply the total by that. Remember to round up if you get a decimal.