I've found lots of similar conflicting data. Seems to be a lot of misinformation and scams out there. I might start mining a bit as a hobby just to learn more about cryptocurrency because it seems like the only way to really profit would be to buy, either way you're hoping it's going to become more valuable.
http://www.coinwarz.com/cryptocurrency
https://www.nicehash.com/?p=calc
Interestingly, these don't agree.