Hello guys,

I am trying to understand how to calculate the Earnings over a year for an ASIC Miner.

As an example I picked the **Innosilicon A9 ZMaster**. It has the following specifications:

**Hash rate:** 50,000,000 H/s

**Power:** 620 W

These specifications where taken from Cryptocompare - Innosilicon A9 ZMaster. (see link below for coincompare)

I tried to calculate the ASICs miners ROI like the following:

Find below the spreadsheet where my calculations are laid out in detail:

Compared to the Return per year that is calculated on coincompare my calculations are not as near there as on coincompare it is stated that the miner **makes around 31.5k per year**.

See the page of coincompare for proof.

Any suggestions what I am doing wrong?

I highly appreciate your replies!