If you want to see how much rewards a miner can make, just check its Reward history when you're buying or creating one. It'll show you how much the miner could've earned for you every day over the last year if you had it earlier.
What determines the amount of your rewards:
Computing power
Our miners, just like real ones, have computing power as they are backed up by the power of real miners in our data centers. The more computing power your miner has, the more rewards you will get. Learn more here
Energy efficiency
The more energy-efficient your miner, the greater your rewards. That's because efficient miners require less electricity, leading to lower fees and bigger profits for you. Learn more here
Discounts on miner maintenance
With maintenance discounts, you'll pay less for electricity and service, boosting your daily BTC rewards. Learn more here
Current BTC exchange rate
Bitcoin network complexity and commissions