need help with subtraction calculation
i creating form several simple calculations, sums, i'm having trouble getting 1 subtraction field on form work , hoping can help.
the subtraction field calculates set value minus calculated value (ie. 180-calcvalfield). i've tried entering "180 - calcvalfield" in simplified field notation (without quotes) works , doesn't - ie., if preview form, value correct when change 1 of variables in of fields go calcvalfield, fields update except subtraction field (which stays same). other times, subtraction field may change value absolutely incorrect no clear logic (ie. can't tell error is).
it may worth noting calcvalfield sum calculation based on 2 fields - 1 simple, user-entered value; other calculation field sums 20 fields sum fields based on user-entered values. in other words, there lots of sums going final subtraction calculation calc simple (one variable - variable), indicated above.
any ideas? there different field notation can try? kind of javascript? i'm not super knowledgeable on javascript can copy , paste, if there's straightforward solution...
this type of thing points incorrect field calculation order. steps take correct depend on version of acrobat you're using, explained in acrobat's document.
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