Display Previous Values
In the modules, you will note that some text in the data grid is highlighted in blue:
The modified values are highlighted in a light blue to indicate that they have changed as a result of a revision to the schedule, in this case.
If you place the cursor on one of the highlighted values, you can review the prior values of the cell, allowing you to assess the impact of the change. This behavior is pervasive throughout all of the data grids in Newforma Project Analyzer.