Fred and Tim, thank you for your replies. They were very helpful.

"Ruth" wrote:

Dealer Cost column has a list of dealer prices. Sale Price is the reduced
dealer cost. I need a column that shows the percentage of discount from
Dealer Cost to Sale Price when the price is entered in Sale Price column.
Sometimes I would like to enter the percentage of discount and calculate the
Sale Price. Any ideas of a fairly simple way to do this so that the printout
is understandable to clients? Thank you very much.