You need to use a switch on the mergefield in Word to display the
information you require
You will probably find that
{= {Mergefield fieldname}* 100 \# "# %" }
will give the correct result.

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Graham Mayor - Word MVP
My web site www.gmayor.com
Word MVP web site http://word.mvps.org
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> I have an excel file that I have calculated fields that display as
> percentages. When I mail merge to MS word, using numberic picture
> switches, the calculated number is wrong and does not display as a
> percentage. What am I doing wrong?