If less than zero, then zero

[Former Community Member]

I have a form where I need to subtract two values from another value but it can't show a negative number as the result.

So it's  a -(b+c). If a becomes -10 then I need a script to just show a zero in that total field.

I'm thinking in javascript but I'm still writing it in pig latin. Please help.

[whyisthisme · Accepted solution]

I am not sure of the java but in formcalc it would be:

if (a - (b+c) > 0) then

    $ = a - (b+c)

else $ = 0

endif

(in the calculate field of the total box)

[Former Community Member]

Worked like a charm. Thanks.