Decimal option (Custom fields) truncates zeros on

Wordpress: 3.9.2
WPGEO: 1.2.4

Place settings > Custom fields > (choose a custom field to edit) > Field Type Data = DECIMAL

When I have it set to Decimal, and I use something like 8.00 in one of the listings, it cuts off the zeros, leaving just “8”

I realize that this might be how mysql/php works by default but is there a way to fix this? I am using this to show prices. Or is there a better way? I could use CHARACTER but this might cause problems if not-numbers are entered in that field.