I wonder when will you realize that 0.0025 is %0.25, not %0.0025. Lets make it simple for you, lets assume that we do 95 damage and our pet does 5 damage. Increase that 5 damage by %5, 5 x 1.05 (%5) = 5,25, which is an increase of 0,25 damage. Lets compare the new damage with old one now, 100 with 100.25. Tell me the increase in percentage will you? And since you wanted sim, here is fully raid buffed sims even though it favors haste like mad.
https://imgur.com/nG3geom
Orc: 18439
Troll: 18422
Its this close only cause rawr treats haste like a godsend for hunter while its not, it even values 25hc neck way more than rimetooth hc for hunter.
Rawr files incase you wanna check: (They are same, only changed races, the only buffs I didnt include are hysteria and tot.)
https://easyupload.io/iort5w - orc
https://easyupload.io/zuqmmp - troll