Multifactor productivity is deterministic ratio arithmetic, not a causal claim.
highlighted = computed this step
Deterministic Snapshot
This snapshot uses fixed output and fixed input-cost buckets.
base MFP=1/4what-if MFP=3/10
Honesty Note
This is deterministic multifactor productivity arithmetic only. It does not make price, quality, causality, mix, inflation, or future-performance claims.
multifactor productivity is not price or quality proof