Performance impact when one CKF is used in another CKF

Hi Experts!

I would like to know if there was a potentiel performance impact if a calculated key figure (CKF1) is used in another calculated key figure (CKF2) while designing queries.

In other words, which scenario is better for performance and why?

Example: CKF1 = KF1+KF2

CKF2 = KF1KF2KF3

Scenario A: CKF2 = CKF1+KF3

Scenario B: CKF2 = KF1KF2KF3

Thanks

Deepthi