You first lightning the closest to the center air defense. Then, spawn archers to pick off a corner building near another air defense.
Then, place BK and remaining archers to clear all buildings.
Spawn 3 dragons near Air Defense and other 3 on the other side of the corner building picked off.
Then, spawn the 10 balloons in groups of 5. If done correctly, the balloons will destroy at least 1 AD, and a few dragons spawned should go in and get the townhall, and the other 3 should go around to get the percentage.