Manual expectations from the fixture, not recorded engine output:
A100: 2 of 2 units delivered by Jan 31: on time.
A101: last of 2 units arrived Feb 2: late against Jan 31, on time against revised Feb 2.
A102: only 1 of 2 units by Feb 3: incomplete; still in denominator. Feb 5 delivery is outside snapshot.
A103: 1 of 1 units by Jan 31: on time.
A104 cancelled, A105 future due date, A106 earlier due date: excluded.
North: 2 eligible, 1 on time, 50 percent. South: 2 eligible, 1 on time, 50 percent.
Overall: 4 eligible, 2 on time, 50 percent.
Revised promise: 4 eligible, 3 on time, 75 percent; +25 percentage points.
Delivered shipments for the eligible orders: 6, of which 5 on time; 83.333... percent.
The shipment answer describes shipments, not complete orders.
No eligible orders in West: COUNT=0, SUM=NULL, percentage=NULL.