1. I couldn't find from anywhere in the pool page average hashrate but finally remembered that Android app MiningObserver shows each workers hashrate and for the example rig I will try to perform the calculation it says average hashrate: 79,6MH/s
2. Network hashrate: 1,849,251.72MH/s
3. Blocktime in seconds? From whattomine I get that it's 55 seconds.
4. Blockrewards from whattomine also got: 5000RVN
Voila, looks like accurate result: https://www.google.ee/search?q=79.6%2F1849251.72*(24*3600%2F55)*5000&oq=79.6%2F1849251.72*(24*3600%2F55)*5000&aqs=chrome..69i57j6.68260j0j7&sourceid=chrome&ie=UTF-8
About little more than 300RVN it makes yes. WhatToMine calculator somehow calculates 311RVN though. Not sure how. https://whattomine.com/coins/234-rvn-x16r?utf8=%E2%9C%93&hr=79.6&p=0&fee=0.0&cost=0&hcost=0.0&commit=Calculate
Anyway - big thatnks for teaching how to calculate revenue.
The original question still was though from where else you guys get information what to mine as it will be quite a nonsense to go one by one hundreds of coins through to find what's good idea to mine in current tough times.