I think it is 1 % pure stake .... but I not make sure ... have something I not understand
But what they mean was not pos was pow ..
Pow have reward is 12 % from the chinese pool
This seems very interesting ... because in this way rentrig.com will be profitable
I tried to rent rig before always was fear but now it is good for 12 % profit
Let me make sure then update
I have one of that pool in my wechat .. I will ask first and make sure then I will update here