Why does ABC correct the allocation of primarily batch and product$-$ or customer$-$sustaining costs rather than correcting the allocation of unit

or facility$-$sustaining costs?

Generally, the allocation of unit and facility$-$sustaining costs

the traditional costing approach and the ABC approach. Unit

costs

allocated appropriately on a per$-$unit basis, so ABC

Facility$-$sustaining costs

be traced to certain activities or resources used, so these costs