Hi!

Try this:

A1 = 25

=MAX(ABS(MAX(D7:R249)-A1),ABS(MIN(D7:R249)-A1))

Biff

"barbdee" wrote in message
...
how do I write a function to find the maximum deviation from a specific
number (say 25, for example) in a worksheet of numbers above and below 25
(say cells d7:r249, for example)