This sort of works. This formats both the legend and the actual number being displayed when you hover over the chart. I am looking to only format the legend. I need the actual number in its entirety displayed in the chart.
In QV9, I see that the Legend is basically just a check box under "Dimensions".. not a lot of room for customization.
If it is the same in whichever version you are using, I suspect the way you format the dimension/axis, will also apply to the Legend. I imagine there is a rule somewhere about this being consistent as a best practice.