Excellent - item.AmountString works well

I am tracking my $ and Cents as separate globals - so am dividing my Cents by 100 and adding that to the $.

`var MoneyItem = Game.GetItem("money");`

moneytotal = moneydollar + (moneycents/100);

MoneyItem.AmountString = moneytotal;

However for $1.50 my maths calculation displays $1.500000. Is there a way I can keep decimal places to just 2 integers? And single integers if needed, e.g. $1.99 to $1.10 (2 integers) $1.9 to $1.1 (1 integer).

I couldn't see how to do that with the maths code.