Multishot tooltip mistake?

My Multishot skill says: deals 99% weapon damage (24% from 2 points in Guided Arrow).
On my Character screen the normal attack deals ~100 damage, multishot just ~80 damage. Shouldn’t both be about the same?

I reported this issue here, feel free to give Blizzard another nudge :slight_smile:
https://us.forums.blizzard.com/en/d2r/t/multishot-tooltip-is-still-incorrect/155439