I have entered into a mining contract with miners on ebay, we agree this following contracts:
1. 30days 2.7Th/s @$200
2. 30days 7.5Th/s @$300
the later is much cheaper I guess. my mining pool is at antpool. my question is, did I make a good deal or was I fooled? any advice on decent mining contract. all are for btc coin mining on different person.
You should ask for the electricity rates first and watch out for difficulty just like other said. its much harder to mine bitcoins right now and in other countries mining are not profitable due to high electricity rates..
So if they are selling a contract make sure that they are paying a low electricity rate because the difficulty is always increasing..
here is the link of calculator which is you can edit like power or kw/h and edit the difficulty and also the hash rate..
http://www.coinwarz.com/calculators/bitcoin-mining-calculatorand check difficulty here
https://bitcoinwisdom.com/bitcoin/difficultyBase in my own calculation with the default settings in checker with $300 for 7.5th possible that you can get is $50.55 in a month with 10 cents per kwh..