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Library Return on Investment Calculator
  • Enter in the left hand column the number of times per month you or your family use each service.
  • Estimated retail value of each service will be calculated on the right.
  • Tip: Tab between entries and do not use commas.

Please enter the number of times you use the following library services each month

Your UseLibrary ServicesValue of Services
Value you receive monthly from your library: $
For every $1.00 in taxes you invest in your library, you receive $ of value in return*

Where did these numbers come from?
The per capita funding for Hackley Public Library is based on the 2008/2009 State Aid to Libraries Report which can be found at the Library Of Michigan. We borrowed value of library service figures from Maine State Library's Library Use Value Calculator. For more information, see their explanation.

*Your personal return on investment is based on your responses and the typical annual tax contribution for Hackley Public Library. You see a returned value of $ for every one dollar invested.

Values used in the calculations above
Value of a book checked out at a library, including via interlibrary loan = $25
Value of a magazine read at a library = $4
Value of a movie checked out at a library = $10
Value of a music cd checked out at a library = $15
Value of an audio book = $25
Value of a children's program = $6
Value of a program, such as a book club, for adults = $10
Value of a patron spending an hour on a library computer = $12
Value of a reference question = $7
Value of full-text articles accessed from a library's Web site or the Michigan eLibrary = $10
Value of utilizing library resources in-house = $10
Value of a Magazine read in the library = $2
Value of using a meeting room for one hour = $50