Cell A1 is a drop down list that you select either "A" or "P". Cell B1 is a
cell where the user enters a number. If A1 is "A" I want the number in B1 to
show as an amount in $ whereas if A1 is "P" i want B1 to show as a percentage.

The conditional formatting option allows me to change fonts, borders, and
patterns but not the number format.

Any help would be appreciated