What is the ROI of a masternode? Not in percent... How many coins how often?
Now we have a 77 masternodes. 1 block per 60 sec = 1440 blocks per day = 43804,8 STP for masternodes. So, if u have 1 node: 1/77*100 = 1,3%
43804,8/100*1,3 =569 STP per Day. The calculation is correct in this situation (77 nodes)