My accounting program is a penny off, Why?

[bigelwood]

I am running a basic account program I set up my self. I use this program to
keep track of my monthly expenses, what I spend money on, how much I spend,
to incluld taxes. One collum I keep track of my yearly expenses, the other I
keep track of my monthly expenses.
My yearly is correct to the penny, but my monthly is a penny off. I use an
Canon palm printer PZ-D to add everything up. All numbers are correct. Except
the monthly collum. The collum names are (cu) & (cv) I have try everly thing
I know but nothing works.
You may not think a penny is much but I do.
Is there somebody out there who can help me with this probem.

 

[AKphidelt]

Try extending the Decimal points out to 4 or 5 places... then subtract the
monthly column # from the Yearly column number. Then sort them by the highest
value. It's most likely a small rounding error.

 

[Ragdyer]

Check out this page of J.E. McGimpsey:

http://www.mcgimpsey.com/excel/pennyoff.html