Each sheet of Capitol is imprinted with an audit number. At the end of each session, subtract the original starting number from the audit number on the first remaining book, and you will know the exact number of books sold by each floor person.

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Example: A seller's books run from 5,601 to 5,700 at the beginning of the session. At the end of the session, the top book is 5,671; this means 5,671 - 5,601 = 70 books were sold. Simply multiply the 70 books by the selling price, and the sales are instantly calculated. It's that easy!