A quick explanation of how to assess a Bitcoin miner for profitability...

Let's take the S21 Pro.

It has a hash rate of 234 TH/s. The world is hashing at 750M TH/s, so that machine will contribute to the following fraction of the world hash rate...

234/750,000,000 = 0.000000312

Cool.

That means, if left on all day, it should generate the total world bitcoin reward for the day multiplied by that percentage...

450 bitcoin x 0.000000312 = 0.000 14040 bitcoin (14,040

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