Ah, nice! I was just thinking that it would be the same as any other square where it revealed the positive/negative values e.g.: "+1/+1". Maybe move the money revealed to the top of the square so that this line appears in the same position as it does on all the other square (on the bottom of the square). I'm not sure about having it be a single number that can mean either positive/negative (or both combined). It seems like you might be moving towards a "buy" system which sounds cool, so maybe the first time you buy it, you get just the one number, and then if you pay a little more, you get that number split between the positive/negative numbers.