The OEE product and downtime what-if are recomputed exactly.
OEE Product
OEE multiplies availability, performance, and quality.
OEE=availability×performance×quality
Compute OEE
The exact OEE is 1/2.
3/4×3/4×8/9=1/2
Downtime What-If
With downtime 20, availability becomes 5/6 and OEE becomes 5/9.
what-if OEE=5/9