BTC has been fluctuating between 70-75$ for two days but still PXC rose from 33K to 39K in those two days. SO here you are wrong. People are really coming towards PXC also today the hashrate also jumped from 100 to 800 KH/s so it is another sign of interest.

Now again you can see BTC has rose but PXC has gone down it shows that the calculation is in any way not related to BTC.