I learned how much one card brings in mining at 1070. If anyone is interested. 1x 1070 = $ 0.3-0.4 per day.
A few weeks ago, someone wrote here that they get about one dollar a day from one card! Your data is more than 2 times less. Where is the truth?
I understand that 0.3-0.4 is net income minus electricity. At the moment it is not profitable for me to mine this coin. It turns out that one farm of six cards will bring net income 6*0.4=$ 2.4 per day, 2.4*30=$ 72 per month. This very little.
I don't know who do you remember saying that but... 1$ / day / 1070 sounds a bit too high for me, these days only a 1080ti gets you at around that much, and that's before you subtract the electricity.
Also note that a 1070 will be outperformed by a 1070ti in HEX algo. Don't be confused with Ethash in which the difference between the ti and non-ti versions are minimal.