Sum of two values

Hey, this seemed to be so easy, but still i can’t google it out.
I have 2 empty fields (numeric values)
and text “Sum”
Once both of the fields filled, The Sum text should calculate
the sum ( field 1 + field 2) if only one field is filled. it should show the sum text should repeat the entered value.
Thank you

You should be able to use the “Text Changed” event on the text fields, unless something really weird is going on. Sum_Inputs.rp (48.8 KB)