TTB,

You need to give the formula a complete cell reference A1, or A2, not just A.

=if(a1<-90,"-90days",if(a1<-60,"-60days","30 days"))

Also if you want -90 to return "-90days", and -60 to return "-60days", then
you will need to replace "<" with "<=" like this:

=if(a<=-90,"-90days",if(a<=-60,"-60days","30 days"))

Hope this helps.

Ryan

"TTB" wrote:

Help, my formulas does not seem to calculate negative numbers. If a= 91 then
result is 30 days.

=if(a<-90,"-90days",if(a<-60,"-60days","30 days"))
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TTB Thanks!