Dana and Sal close the story: two spirits rates, and beer and wine on different rules; a shop owner needs a bookkeeper who gets it, and that is a service they will pay for (recap cards C1 and C3).

Marco This bottle's shelf price is thirty dollars, and the receipt says almost thirty-nine. A customer asked if I overcharged.
Dana You didn't. That's the spirits taxes, and the law wants them shown separately.
Dana Two spirits rates, and beer and wine on different rules. A shop owner needs a bookkeeper who gets it, and that is a service they will pay for.