In the warehouse the integration revenue gain is displayed as +NAN%.
Looking at several examples, the integration gain can range from +12% up to +600% (integration revenue as a percentage of current base price).
It seems as though the high percentage gains are when the stock level for the good is high, which sort of means there aren't extraordinary gains to be made.
I can't work out if there has been some deliberate coding change here? Or if the integration premium is floating because of the NAN.