Finish variance, Start Variance, Work Variance, Duration Variance, and Cost Variance are all calculated by Project as long as you have saved a baseline.

The Finish and Start Variances are default fields on the Variance Table.
Work Variance is on the Work table.
Cost Variance is on the Cost table.
And Duration variance can be added to any table needed.

The Tracking Gantt provides a visual of the baseline bars to the current schedule.