It is very useful to be able to quickly gain insight on how your project is performing compared to recently, say on a weekly basis.

You can quickly add a comparison period in the report builder. Click the cog in your report and click edit.

There are multiple date comparison periods to choose from. In this report we have selected the date range to be 'last week'. If we choose a comparison period 'previous period', it will show the weekly data for two weeks ago.

If we choose 'Month on Month', this will show data for the same week in the month, but a month previous. Next to the period you can see the date ranges.

You can even choose a custom period (and save it if you wish) and compare it to the previous period by clicking Prev Period e.g. Last 10 days and 10 days prior.

You can even customise the previous period and technically compare any two periods!