InfoPath Dev

I have a number field and if the number is greater than zero the form needs to show an up arrow. If less than zero, a down arrow. What is the best way to do this?

Here's a sample. I just used calculated values with a character with the Wingding font instead of a picture, just because that keeps the form smaller. If you must use a picture, you could put each picture in a section, and use similar conditional formatting. Save the attached file locally. Right click the file, and select Design to open in design mode. Then you can preview it.

Thank you so much again!