It seems to me that autofilling the last row of a constant sum question when displaying the running total is coneptually wrong.
Respondents should be able to enter their answers, view the running total and correct as necessary. Auto filling th elast row assumes that I have entered all of the previous responses correctly.
QP response was to turn off runnin g total. I don't like that either. Let's suppose I have a list of 10 items and I want to add to 100. I fI turn off running total, error is must add to 100. I have no idea if I am short 5 over 5 or what.