Thanks for reply.
So it is possible to achieve such result if you have the pool of community to mine together?
solo mining will never achieve such result.
Do correct me if i am wrong.
That's correct, if you have a big pool...
The average time between two XMR blocks is 2 minutes, the block reward ~2.5 XMR and the price at this moment ~$85/XMR.
This means that, if you'd be the only pool owner, and nobody solo mined, at this moment you'd have an income of ~55800 XMR/month (31 days) =~ $4.7 million USD/month.
So if you'd controll about 1/19th of the hashrate, you could have an income of about $250.000/month... This is BEFORE paying your electricity bill and hardware!!! I have no idear if coinhive controlls this much hashpower, but i certainly wouldn't dismiss the idear...
Solo mining...
find your hardware here:
https://monerobenchmarks.info/plug those numbers in here:
https://www.cryptocompare.com/mining/calculator/xmrBut basically, if you have the best GPU, at current difficulty and XMR price, you'd stand to have an income of ~$500/year, burning a truckload of electricity in the process, so you'll have to have nearly free hardware and cheap electricity if you actually want to make some profit.