How did we arrive at these values?

• Books Borrowed: Comparable to cost of Borders average discounted hardback.
• Paperbacks Borrowed: Comparable to Borders average paperback cost.
• Magazine Borrowed: Comparable to average retail purchase.
• Movies Borrowed: Comparable the average rental cost at a movie rental store.
• Audio Books Borrowed: Comparable to Borders Audio Book on CD retail purchase.
• Items Borrowed from Other Libraries: Comparable to cost of time and transportation.
• Meeting Room Use per Hour: Based on commercial charge for use of Library meeting space.
• Adult and Children’s Programs Attended: Comparable to local recreation and entertainment centers.
• Computer Classes Attended: Comparable to computer training course at local college.
• Hours of Computer and Internet Use: Comparable to purchase of personal hardware, software, and internet access.
• Newspapers Viewed In-house and Online: Comparable to purchase of daily newspaper.
• Research Databases used per month: Comparable to purchase of individual monthly access.
• Reference Questions Asked: Comparable to phone reference, information, or technical support.
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• Thanks to Luke T. Charde's excellent original open source code for this calculator's source.