Move cursor to “View” menu and click, Select “Table – Entry”, Click on “More Tables”, Select “Baseline” and Click on “Apply” button.
It will display baseline fields such as Duration, Baseline Start, Baseline Finish, Baseline Work and Baseline Cost. First time the fields (before we save the project tasks into Baseline) will not be displaying any data of the project tasks. The baselines can be saved as follows:
From the Tools menu select Tracking, and then click Save Baseline. Figure shows the dialog box and descriptions of the features available in the Save Baseline dialog box.

Save baseline. This feature saves all baseline fields up to 11 times for one project. The dialog box has a drop-down list for each of the 11 baselines. When a baseline is saved, the last date saved is stored with the baseline and will be displayed in the dialog box next to the baseline name for future reference.

When this option is selected, choosing OK copies the Start, Finish, and Duration, Work, and Cost fields for the appropriate tasks into the corresponding Baseline fields.  If there are resources assigned to the tasks, the Work and Cost fields for each resource assignment are copied into the corresponding Baseline fields as well.