Report over two timeranges in one report

Hi all,

is there a way to report different values, e.g. CPU count, Disk space total over two different time ranges in one report ? I want to show in a report the changes on a virtual machine made in a specific time, e.g. last month.

Best way would be to have a report, showing CPU, RAM, DISK and NIC in column and the differ between the last month and if possible a timestamp when it was changed.