Hello i see Okcash has exist since 6 years and the reward of block staking is 22% for this year and half of next year it's very very interesting, can you tell me how much i can win earn over 1 month if i invest $150? Is it really $33?
Welcome to Bitcointalk! No $33 reward is not guaranteed for several reasons.
1) The block reward is earned based on the weight you have on the blockchain, the more Okcash you have, the more weight you have.
2) $ price and rate fluctuation can be + or -
22% is also the yearly rate, not monthly.