Shows 40 statistics for the specified period and up to 3 sets of prior data with period to period changes calculated for 14 key indicators. Can report for the complete practice or selected practice locations.

Updated 7/9/15 to check for counter sales as well as invoices when counting distinct customers seen in period, and also to include counter sales when summing discounts.

Updated 23/9/15 to correct the calculation of the "Avg outstanding bal at end:" numbers.

Updated 4/11/15 to correct errors in the outstanding debtors calculations and improve its performance.