Cannibalize HP:Mana conversions ?

[Bushido]

is the conversions listed as:

Cannibalize I (LVL 24): consume 50 hp, gain 19-30 Mana (conversion ratio is 1.66 to 2.63 hp:mana)
Cannibalize II (LVL 38): consume 67 hp, gain 30-42 Mana (conversion ratio is 1.60 to 2.23 hp:mana)
Cannibalize III (LVL 54): consume 100 hp, gain 39-47 Mana (conversion ratio is 2.13 to 2.56 hp:mana)
Cannibalize IV (LVL 58): consume 148 hp, gain 81-82 Mana (conversion ratio is 1.80 to 1.83 hp:mana)

correct?

cannibalize:
1 : Decrease Hitpoints by 50
2 : Increase Mana by 20 (L24) to 28 (L60)
cannibalize II:
1 : Decrease Hitpoints by 67
2 : Increase Mana by 30 (L39) to 36 (L60)
cannibalize III:
1 : Decrease Hitpoints by 100
2 : Increase Mana by 39 (L54) to 46 (L60)

or the spell listings correct?

the first is listed under shaman wiki but the spells show a different mana under the wiki.