Display Screen or Portion Thereof with Graphical User Interface

FIG. 1 is a front view of a display screen or portion thereof with graphical user interface showing a first image of our new design;

FIG. 2 is a second image thereof;

FIG. 3 is a third image thereof; and,

FIG. 4 is a third image thereof.

The dot-dash broken lines illustrate a display screen or portion thereof and form no part of the claimed design. The areas shown in sloping dashed lines, the dashed characters “A”, “B”, “C” and “D” and the dashed circles surrounding the dashed characters “C” and “D” form no part of the claimed design. The black background within the dot-dash broken line is included to accurately depict the ornamental features of the claimed design and forms no part thereof. The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1 - 4 . The process or period in which one image transitions to another image forms no part of the claimed design.