Displaying a negative result
I am creating a game where the learner either earns money or loses money. I know how to do the adding and subtracting. What I would like to do is not have a negative result display the minus sign (e.g. -100), instead I would like it to appear in red. Multiplying by -1 when the result is less than 0 because it makes the result positive and then any further subtractions of money are subtracted from a positive number instead of a negative number. I've searched for how this can be done to no avail. Can you help?