If you are so happy to show dice when doing critical hit&miss, and during skill checks, why not also give us tooltips with actual modifiers, and not translate chances to hit into confusing percentages?
I personally prefer seeing the % chance rather than showing numbers, modifiers, etc... I'm a visual person though, and math is definitely not my strong suit!

I'm sure more mathematically minded people would prefer seeing all the numbers. Having the option of what to display would be nice I guess.