Cashing out on a Regular basis.

Ive recently built by bankroll up over 2800 playing 100nl over the last 2.5 weeks and i've just cashed out 500. Now i know i'm probably playing a bit high for BR but my game seems to suit the 10 handed tables on 888 and i've been doing well.

But i would like to know what percentage of your BRs do you guys normally cash out after reaching your cash out point. I was thinking of going back to 50nl and grinding to 4.5 k and cashing 500 whenever i can reach it back to 4.5k.

Or if this is working at 100nl, should i stay at this level and do the same?(4.5k)