Formula field strips off trailing (zero) 0

Formula field strips off trailing (zero) 0

I have an inventory form. There are two fields one is the (Item Cost), the other is the (Pack Quantity) If I have an item cost of 19.50 and the Pack Quantity is (1) and you divide the Item cost / Pack Quantity ie: ( 19.50 / 1)  the result in the formula field is 19.5. Is there a way to always round to 2 decimal places and show a trailing zero (0)? hence 19.50.