Invoice to show credit applied

When I rerun invoice for our league teams, the court price shown is the adjusted price, it does not show why it's less and causes a lot of headache from both sides trying to figure out why. Can I request that details be added?

For example, a team had a $78 credit from the previous year.  When I billed their court usage for September, one of the courts was missing and one was showing half the price.  Nothing on the invoice showed the credit was applied. It was only through research that we could determine what happened.