I've already seen enough of your stupidity.
Whether you look at it as a performance chart or a stock chart, what that chart means is that the “trend is down.”
If you had focused on other people's explanations, you would have realized sooner how absurd your explanation was.
The thick dotted line is the average over 7 years.
But you are dividing this into Part 1 and Part 2. (Arithmetic is not done that way.)
If you wanted to divide the trend line into Part 1 and Part 2, you should have calculated the average value separately into Part 1 and Part 2.
- And if calculate the average for Part 2 separately, do not get 5.67. (Try it yourself.)
(Of course, when the average value changes, the shape of the trend line also changes.)
You really don't know anything.
You have serious problems.