The Reverse Vertical property is used to flip a chart vertically. The picture below shows an example of a chart, with the Reverse Vertical property set to false (As one can see, the values of the x-axis have normal direction.):

 

 

If the Reverse Vertical property is set to true, then the chart will appear in the opposite direction vertically. The picture below shows an example of a chart, with the Reverse Vertical property is set to true (As one can see, the values of the x-axis have downright direction.):

 

 

By default, the Reverse Vertical property is set to false.