Yes, the percentage would be about 1%, and no, it won't let you enter fractions. Just whole numbers.
As for your suggestion, it's appreciated. Unfortunately, TurboTax Basic only includes the T2125 form, which is as close as possible to the CRA form. So, unless the CRA changes their form, it's not going to change in TurboTax Basic. They might add it to Home & Business someday, though.
