The picture above shows the animation node setup I have currently. It is controlled by the movement of an empty. But I want to add a percent symbol on the end of the number. How can I do that? TIA
Not knowing exactly how you have your number and the empty related to each other I was playing around with the animation nodes addon.
I set up my tree to look like yours and parented the TEXT object with the EMPTY. When the empty moves around the text object changes the number shown.
As 10 Replies suggested, I was able to add another text object to the scene with just a '%' sign. I parented that to the same empty in a position just to the right of the text object controlled by the animation nodes. In order to get the two text objects to stay in relative position, the text object displaying the number needs to be set to RIGHT in the HORIZONTAL ALIGNMENT section of the PARAGRAPH settings for the text object.