You can only put references to cell addresses or defined names. You could define a
name that calculates the difference, or you could put the formula into a worksheet
range somewhere.
Why do you not want to use another column for this calculation? Will it mess up the
worksheet you've nicely formatted? Then use a column out of sight to the user.
People seem obsessed with not adding columns for calculations, when it's by far the
easiest and most logical thing to do. Keep It Simple Stupid doesn't mean reducing
columns, it means sometimes you can reduce complexity by adding a column. If you
have a special display worksheet, keep the whole set of data on another sheet, and
let your chart and your display sheet link to the data.
- Jon
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Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
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