Hi guys,

I am having trouble typing in negative numbers for uneven cashflow NPV’s. (using HP 12C)

I have only just started using it so I am probably doing something wrong.

When I input negitive numbers for CFj they stack and an unwanted subtract sum takes place.

EG: CF1=100 CF2=-200 …

I enter it as follows 100 [g] [CFj] 200 - [g] [CFj] (the problem is doing this will compute 200-100)

is there a way to put this in correctly without clearing the previous number before writing in a negative input,

Cheers.