>If the user is holding a Big Root, the HP restored is increased by 30%. Big Root does not increase the damage dealt.
Please note - this means that it is increased by a further 30% of the original rate - not just + 30%.
In this case, Oblivion Wing normally gets back 75% health of the damage given.
1.3 x 75 = 97.5
.: Answer = 97.5% of damage dealt