Days on Loan shows as 0 days for all printers

[GHLasse]

There seems to be an error calculating the number of days a printer has been on loan. It always shows up as 0 days in the pie chart even if the printer has been on loan several times.

[sb2g14]

The problem is that the system calculates the time of prints done on loan rather than printer been on loan. That's why sometimes it is less than 1 day if the prints are short even though the printer has been on loan for several days