The whole of September 1978. Hand-entered orders are counted from every day in that range. Shop orders are counted from the 0 days that have been run — 30 days have not: 1978-09-01, 1978-09-02, 1978-09-03, 1978-09-04, 1978-09-05, 1978-09-06, 1978-09-07, 1978-09-08, 1978-09-09, 1978-09-10, 1978-09-11, 1978-09-12, and 18 more.

One page per customer: what to invoice them for, and what they have earned in delivery credit for hosting collections. Shop orders are paid at the checkout, so only hand-entered orders ticked “Invoiced” appear.