When you change the value of a data marker by dragging, Microsoft Graph also changes the underlying value on the datasheet.
If the data marker is a 2-D bar or 2-D column data marker, drag the top-center selection handle.
If the data marker is a 2-D pie or doughnut chart data marker, drag the largest selection handle on the outer edge of the data marker.
Note You cannot change values in a 3-D chart by dragging data markers.