Different data depending on the size of the window


I made a data graph with “total” value and option “to the right”.
If the window of my browser (Chrome, Firefox, Safari - it does not matter) in full screen - “total” value is greater than if I reduce the width of the browser window - the value “total” is smaller.

for example:
full screen -

half-screen window - image

can this be fixed? or this is a bug?