http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=15422 Bug ID: 15422 Summary: Number of items to order on holds ratio report will not fulfill the holds ratio. Change sponsored?: --- Product: Koha Version: master Hardware: All OS: All Status: NEW Severity: enhancement Priority: P5 - low Component: Reports Assignee: gmcharlt@gmail.com Reporter: barton@bywatersolutions.com QA Contact: testopia@bugs.koha-community.org When running the holds ratio report ( circ/reserveratios.pl ), I have the hold ratio set to 3 (this is the threshold ratio, set in the Refine results box on the right). This is from the first row on the page: Holds : 40 Items : 3 Hold Ratio : 13.33 ... Items needed: 4 to order If we add the recommended 4 items, we have 40 holds and 7 items, which brings the hold ratio to 5.7, which is still above the threshold ratio of 3. In order to bring the actual hold ratio below the threshold ratio of 3, I would need 40 / ( 3 + x ) = 3 40 = 9 + 3x 31 = 3x 10.3 = x Or, more generally $data->{reservecount} / ( $data->{itemcount} + $needed ) = $ratio $data->{reservecount} / $ratio = $data->{itemcount} + $needed $needed = ( $data->{reservecount} / $ratio ) - $data->{itemcount} Instead at circ/reserveratios.pl line 158, we have ratiocalc => sprintf( "%.0d", $ratio_atleast1 ? ( $thisratio / $ratio ) : $thisratio ), which translates to $needed = ( $data->{reservecount} / $data->{itemcount} ) / $ratio This means that if the library orders the recommended number of copies, the title will show up again on the holds ratio report, assuming that the number of holds stays more or less constant. -- You are receiving this mail because: You are watching all bug changes.