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Concept:
A circle graph (pie chart) shows how a whole is divided among categories; each slice’s size is proportional to that category’s share (percent of the total or a corresponding angle in degrees).
– One clear example: If the circle graph for salad dressings has Ranch 40%, Caesar 25%, Italian 20%, and Vinaigrette 15%, then Ranch occupies 40% of the circle and a central angle of 0.40 × 360° = 144°.
– Brief example: Ranch 40%, Caesar 25%, Italian 20%, Vinaigrette 15% (sums to 100%).