3148641 - How the remaining capacity requirement and remaining duration in a rescheduling of an operation will be calculated after confirmation

After confirmation/partial confirmation has been made for an operation of the production order, the remaining capacity requirement and remaining duration in a rescheduling (such as setup time and processing time) will be re-calculated.
However, the values have not changed as you expected and you want to figure out the logic of the calculation.

*Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.

SAP S/4HANA Cloud Public Edition

Control Capacity Reduction, partial confirmation, capacity requirement, rescheduling duration, change production order, operation, activity, setup, processing, teardown, Formula-Related, Proportional to Service , KBA , PP-SFC-EXE-2CL , Order Execution (Public Cloud) , How To