Ten person-days in total
Eight days were identified as billable. Two were spent waiting for Akuvox MAC-address transfers.
Time spent waiting still uses people and resources.
What did the delay mean in pounds?
The two waiting person-days used £1,040 of labour selling capacity at our standard rate: 2 person-days × 8 hours × £65. The delay reduced the team’s availability for other work.
This time is already included in the £5,200 labour selling value for all ten person-days. Count it once. Selling capacity is not the same as lost profit or a confirmed additional invoice.