To read scales, you need to know what each division represents.
To do this:
This gives the value of each division.
What is the measurement at the level of the red dot?
The difference is 500 ml and there are 4 sections.
So each pip is worth 125 ml.
The dot is 3/4 of 500 ml.
What is the measurement at the level of the red dot?
To find each pip:
Red dot: