ArmeniaKidd:Just would like to know how much extra power needed for the 20-25% and the 40-50% rough
Depends on the distance = club to use, and of course on the ground - rough is different to weeds and others.
Let's stick to plain rough.
With decent wedges, the impact is roughly 20% less then the number shown, i.e. hardly any from 20%.
Irons, I usually take the lower number, in your examples, 20% and 40% as additional length requirement.
Full shots with woods tend to be difficult - ehm - short from 30% up. From that point, I usually take punch shots, and from 40% up, only punched irons. One to 1.5 club numbers more may bring good results of adequate length if the early bump after a low flight finds the fairway. Take the medicine, you won't fly any bunker from there.
I've heard that top spin is good from high rough.
From 60% up, take a wedge, aim short way to the fairway, and don't be shy with power.