what is the number of the "miners reward per transaction graph" on the y axis?
Oops- forgot to add a label this. I just updated the graphic. The value is in USD.
is this correct, because it would mean that they are earning $2M for the total sum of the transaction per day on average? 225k tx per day x $10
it's more than their reward from mining...
The 28-day moving average is the red dashed line and is running at about $8 at the end of the chart, while the 28-day moving average for the number of transactions (just updated the graphic in the article to show that) is running at 200k, so that's $8x200k = $1,600,000. Here's the graph of mining rewards per day (I didn't end up using it when I wrote the article):
http://hashingit.com/images/articles/20160203/rewards-per-day-usd.png