Calculation and logic validation

[Kal_Lam]

@stelio, this post discussed previously should help you solve your issue:

How to validate the female and male entries with the total entry

Hi @Sylvain_DOAMBA, Simply expanding what @stephanealoo has advised. In the survey tab of your xlsform: [Image 1] Data entry screen as seen in Enketo: (wrong entry) [Image 2] Data entry screen as seen in Enketo: (wrong entry) [Image 3] Data entry screen as seen in Enketo: (correct entry) [Image 4] Reference xlsform: Calculation.xlsx (9.1 KB) Have a great day!