Reward from last Block for Miners/Stakers: 6.62 PIV
Reward from last Block for Masternodes: 6.88 PIV
1. If I Stake 30k PIV on 1 normal Wallet, can I then expect to get daily 19.86 (3*6.62) PIV?
2. If I have 3 Masternodes, can I then expect to get daily 20.64 (3*6.88) PIV?
3. With which method (staking/masternode) is the chance higher to get the above stated rewards?
Thanks for your help!
Echoing DRPD, the MN stats page gives you the expected reward rates right now, but of course you aren't paid right now; you're paid continuously into the future. So yes, your calculations are theoretically correct, but your actual payout will vary. As far as I know, there's no guaranteed payout frequency from staking, insofar as it's a random process based on stake weight, but it does seem to be around 1/day from 10K coins.
All else being equal there are usually more expenses in running a MN vs. staking, unless you're hosting a single MN locally. On the other hand, the payout is (usually) larger. As the number of MNs increases, their advantage decreases, so perhaps the best strategy, if you have 30K PIVX, is to have two MNs and another 10K staking, or one and 20K, just to ride both sides of the seesaw. Then again, the number of MNs does change; for example when the price goes up a bit, some people sell and the number of MNs goes down temporarily, making MNs more profitable again. So far in PIVX's history, MNs have always averaged higher returns than staking despite occasional periods like we're in right now where MN and stake rewards are basically the same. Of course, this might change as PIVX continues to grow.
For my own part I have nearly all my PIVX in MNs, but a big part of that is that it costs me 2 PIVX to host a MN for a month, and one MN makes almost 3x that in a single day. If it cost more to host, or if I had free power at home, the equation might change.