The measure values can be automatically calculated for a subprocess from  the lower process levels. This can be enabled/disabled when defining the measure in Measure dialog. The calculation for single value measures is done either by summing the values from all process steps, connectors and groups in the subprocess level or from the process steps and connectors from the critical path in the subprocess level.

 

For double value measures the lowest start value from the subprocess level is selected as the starting value and the highest end value is selected as the ending value.