Your math gives total shares, but like i pointed out, It was a declaration on my part that 10000 NRS == 1 BTC == 1 Share, but that was not the price on the market was it? So we cannot assume that there is investment worth 50 BTC. The investment total was worth
29 BTC + 157 k NRB and 167k NRS +447 PTS (corrected)
Which at market price then was 29 BTC + 1.8 BTC + ~ 8 BTC and 4 BTC.
The SHARES are 50 but the VALUE is much less that your proposed 49 BTC
So what you are trying to tell me is that 29+1.8+8+4= 42.8 BTC is much less than 49.81 BTC, with your perceived value. Still even if I would take this into account 42.8 BTC is still a lot more than the around 32, maybe 33 BTC that was payed for the 5 miners!