I have a Line Chart and the Z axis is in percentages. But the values are not getting displayed in %. ie, 80% is appearing as just 80. It is not the case with Bar Graphs as I am able to show them by changing the number format to custom, but is not the case with Line.
I did format it to percent as required, but what it changed was that the z axis values are coming out as percentage and not not the value displayed on the chart is appended with the percentage.