0.09 is marginal for long-term mining. It's been viable since about Febuary this year due to a massive price jump on almost all cryptocoins, but profitability has been dropping a LOT the last couple months as the price rise leveled out and more and more rigs got online to raise the difficulty - and that trend will probably continue for a while since most of the BIG farms are in places with very cheap electric (under 5c/kwh and often more like 3).
Bitcoinwisdom calculator has a "diff increase percentage" field in the calculator, which is a lot better than the "nothing" most other calculators offer.
Wow. Where do they have electricity at 0.03-0.05 per Kwh?