You can simply do:
=-A2

to reverse the sign of any number, or if you want all positive numbers:
=ABS(A2)

all negative numbers:
=-ABS(A2)

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Best Regards,

Luke M
"tammy p" wrote in message
...
not sure if there is an easy way to do this other than physically rekeying
the number. is there a formula or something for me to use to change a
number
from being positive to negative? example: 262.00 change to -262.00 or
vice
versa change from negative to positive. thanks