How can we round a text value?

Hi, I have a text value wich show the slope in 3D of a line, I can get the result that I want, but I would like the value of this text to be rounded, how can I do this? you can see bellow how I did this:

Anybody have a tips on this?  maybe it's not the good way to do this.

I'm using openroads designer 2021 r1

Regards

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