I want to remove NaN from the Form

[Kal_Lam]

Welcome to the community, @testwbd! You could use the coalesce function as outlined in this post discussed previously:

Calculating the sum

You could do the same as outlined in the image shared below: In the survey tab of your xlsform: [Image 1] Data entry screen as seen in Enketo: [Image 2] Reference xlsform: Sum.xlsx (8.9 KB)

Feel free to go through these posts discussed previously, which discuss the coalesce function.