Tooltips

Why is it that some tooltips show the base and scaling of an effect but not the total value, while others only show the value of the scaling without the scaling itself?

Why not clarify things? Have a section at the top, right under the ability name and cooldown, that says how much damage/healing/shield/whatever the effect will grant with the champ's current stats, and then have the tooltip description state how it scales.

Sure, I can do the math in my head, but it would be nice to be able to just look at one number and know it off the bat, instead of adding up a pair of numbers that aren't always 100/200/300 +scaling.