If you use this strategy for war attacks, change the number of Wall Breakers according to the walls if needed.
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You should kill CC troops or this strategy wont work! (use Wizards/Archers)
You must make a path to the enemy's Town Hall/find shortest path with less walls.
Deploy Golems there but with a short distance
Use Wall Breakers to destroy first layer of walls so Golems can go in.
Then deploy all P.E.K.K.A.s and then most of Wizards very fast to help Golems with those defenses.
Deploy other Wall Breakers right before those defenses(which Golems are attacking) get destroyed to make path to the second layer of defenses (or sometimes Town Hall).
If you do the last step correctly the P.E.K.K.A. shoud go along with Golems or else they will go around the base (it means you did it wrong they're not stupid they are computer programs).
When you reach the Town Hall use one Rage Spell (use other spells when you think you should).
If any Wizards or Archers left use them in safe spots (where no defense will attack them) OR near defenses that already are attacking a Golem or P.E.K.K.A. that is not gonna die soon.
You will get 50% easily. Just watch and enjoy!
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Remember the main goal is to take P.E.K.K.A and Golems to the center of the enemy base where his Town Hall is, then they distract defenses and Wizards can destroy everything and most of times you gain 50% destruction automatically (these troops are powerful enough). Sometimes 100%