The Hashing24 website has a convenient calculator for calculating profitability, which allows you to quickly assess how much it costs to invest in the project. It's immediately clear that serious investments are necessary: even if you invest 1-3 thousand dollars, the income will be minimal. To earn at least 4 dollars a day, you need to invest at least 10 thousand, and that's exactly how much I invested. The income comes gradually; at the end of the month, I was able to withdraw 120 dollars, and the payout was almost instantaneous. If the income remains at the current level, I will be able to recover my money in a few years. I will have to purchase additional power to increase profitability.
