In Spotfire Web Player, when viewing metrics in "Monitoring & Diagnostics", negative parenthetical values may be observed for several fields in the Web Player Diagnostics Overview section (like Total data table size, Total data table cells, Total data view size, Total document node count, etc). For example:
Log into Spotfire Server > Monitoring & Diagnostics > Select "Instances" tab > Select "Web Player" in the left side panel > Click "View diagnostics & logs" in Web Player details on right side > "Overview" tab in Diagnostics Information section. Data like the following example may be seen:
Total data table size
(-51)120