@gnd1, you could do this by adding 2 additional lines to the xlsform:
In the survey tab of your xlsform:
Data entry screen as seen in Enketo: when the total is below 100%
Data entry screen as seen in Enketo: when the total is above 100%
Data entry screen as seen in Enketo: when the total is equal to 100%
Reference xlsform:
Hundred Percent.xlsx (10.7 KB)