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Description
Sets or returns whether the data label will contain the (y) value for the data point as a percentage. Only doughnut and pie charts can dispay values as percentages.
C#
vb.net
Remarks
This defaults to false when creating a new Series.The data label is considered disabled if this and ContainsBubbleSize, ContainsCategoryName, ContainsSeriesName, and ContainsValue are all false.
If the series category type is not a pie or doughnut chart, then this property has no effect.