You want to have these troops in this ratio depending on the size of village
1:lightcavalry: : :axemen:3
so for every 500Light cav:lightcavalry: id have 1500 axemen:axemen: . This is cos the village ur attackin will have Spearmen and swordmen, you want to have a good mix of cavalry and axemen.
Also ull want rams

too cos the wall can do alot of damage. If you wanna be absolutely sure you completely destroy the wall you should have 300 rams

, that will get it from 20 - 0 in one go.
But you should sout it first, it helps