What lvl I need before stack subclass to be lvl 78?

[mardel]

lvl 77.31% > 68.00% - you will keep your skills from 78 lvl
lvl 78.58% > 76.02%
lvl 79.44% > 79.00%

[remeron]

I still have to be 77 %25 to retain my skills after I sub
this sux and its pointless, ok, go sell ur premium horns..

[Dzadro]

I still have to be 77 %25 to retain my skills after I sub
this sux and its pointless, ok, go sell ur premium horns..

Before, u had to be 79 and ?% to be 76 after the sub (s grade jewelery/weapon/set if u have such things). Now it is just 78 60% like on old DN. And yes, I consider this as a milestone difference, because this exp once u reach 79 is a very time-consuming thing to do