The values of the items and services included in this calculator were derived from several other library calculators and adapted as appropriate by the Shaker Heights Public Library.
| Library Service | Value of Service | Based On |
| Adult Books Borrowed | $19.50 | Amazon.com average price |
| Young Adult Books Borrowed | $12.00 | Amazon.com average price |
| Children Books Borrowed | $17.00 | Amazon.com average price |
| Audiobooks Borrowed | $9.95 | Audible.com download average |
| Playaways/Tablet Books Borrowed | $20.00 | Amazon.com average price |
| Interlibrary Loan Requests | $25.00 | Estimated Amazon average price plus shipping |
| eBooks Downloaded | $10.00 | Estimated B&N / Amazon average |
| Magazines Read | $5.00 | Estimated purchase price average |
| Newspapers Read | $9.50 | New York Times subscription |
| Movies Borrowed | $3.00 | Average cost to rent from Netflix / Amazon / Video on Demand |
| Music CDs Borrowed | $9.99 | Average cost to purchase an audio CD |
| Music Downloaded | $9.00 | Average cost to download CD from iTunes |
| Wireless HotSpot Borrowed | $12.50 | Average monthly consumer cost divided by 4 weeks |
| Study Room Use (per hour) | $10.00 | Estimated value |
| Adult Program Attended | $25.00 | Entertainment/program admission fee – estimated average per adult |
| Young Adult Program Attended | $15.00 | Entertainment/program admission fee – estimated average per youth |
| Childrens Program Attended | $20.00 | Entertainment/program admission fee – estimated average per child |
| Computer Use (per hour) | $19.50 | FedEx/Kinkos Price |
| Database Searches | $10.00 | Average cost for online article search |
| Reference Assistance | $50.00 | Estimate of hourly cost of private research service equivalent to Master of Library Science |
| Wifi Use (per hour) | $4.99 | Estimate of hourly cost of wifi from Boingo / Gogo / XFinity |
| Computer Training | $25.00 | Estimate of cost of private computer training |
