First of all, read http://wow.gamepedia.com/Normalization
http://www.db.pandawow.me?spell=1464/slam already affected by http://www.db.pandawow.me?spell=12712/seasoned-soldier (look at stats, weapon damage)
2,75*weapon damage+3427
Same formula in PvP. but you have to multiply that shit (2,75*weapon damage+3427) by PvP-power
by PvP-resilience
and by the target's armor
http://s009.radikal.ru/i309/1606/0a/e408bb99abef.jpg
I have 10847 least weapon damage and 10872 maximum weapon damage.
From this it follows:
Least damage will be = 2,75 × 10847 + 3427 = 33256,25
Maximum damage will be = 2,75 × 10872 + 3427 = 33325
http://s017.radikal.ru/i414/1606/65/8b1b13aa5fbc.jpg
Real least damage = 31382
Real maximum damage = 31421
Probaly this is due wowhead's formula: 2,75*weapon damage+1246(we have 3427)
From this it follows:
Least damage = 2,75 × 10847 + 1246 = 31075,25
Maximum damage = 2,75 × 10872 + 1246 = 31144
It's not critical. Tester can close it