Gross percentages

Here's a question for anyone looking. Since we came on the system in August my gross percentages have dropped from when we were on ADP. Repair shop, Wholesale, Internal....pretty much everything's down 1-2%. We don't use a price matrix, and we didn't before either and I don't really want to start using one.
Did anyone else experience this same thing? Are you using any safeguards to prevent selling with low margins?
Thanks, Tony
Did anyone else experience this same thing? Are you using any safeguards to prevent selling with low margins?
Thanks, Tony