Some feedback that will help better understanding of costs.

1. A medium size container vessel (10k TEUS) with abt 15kts speeds will cost the same as the canal transit cost now that the fuel is relatively cheap, compared to the Africa voyage. But you save time.

2. Major liners (APM, MSC, etc), enjoy significant discounts over face value for the canal transits as they commit volumes. The discounts could be north of 30%+, but not publicly available. WILHELMSEN has a nice calculator

3. There is no scenario that something cannot be monetized, either it will be fuel or time or both. As such any financial loss due to the canal clocking can be calculated. The vessel’s P&I will be very busy.