For max Family level atm. you need fill your barracks - max 234 - any chars at HM10 to reach lv88/34%(or 37%)
I have other account on old NA server where my Famlvl is 87/59%...i can count it forya if you want
result for FAMLVL 87/59% = 21 Barracks full of HM10 the rest are chars at lvl hm1