Two trains? They only have 1 out of service.
They require three trains, and they have three trains available, so 100% required.
Their fleet is four Class 222 units
One of them is currently out of service, so that is a PVR of 3 on 3 units, so that is 100%
Their availablity is 3 out of 4, so that is 75%
Don't confuse PVR with availability
One of the remaining three Class 222 units is not available at all times as it is undergoing part-time repair work, hence why it is in service but Hull Trains need to to maintain it 2 days out of 5
Once the fourth unit is repaired the situation should resolve itself, but that is several months away