If they want the cash now, selling large format at high prices isn't going to get it for them.
At that inflated price say that they sell 1/3 of the boxes but profit per box is x5: more money now, less money in the future because they are to kill that segment.
if they need cash, then the thing to increase the price on is roll film,
They also increased 35mm prices a lot, but in roll film they have some Fuji competition and the 35mm market has a large share of young people that would drop way easier.
the cost of sheet film has very little to do with the cost of goods sold and a whole lot more to do with how much capital is sucked up at the distributor/retail level in carrying something that is comparatively very slow moving. The prices you are seeing are retail prices.
This reasoning fails as ilford and Foma are able to sell sheet film at prices (per surface) that are close to 35mm film
For all you know Kodak does actually price sheet film fairly, and it's the distributor/retail space that is pricing according to how much they would otherwise be making if that money was tied up in a faster moving product.
This does not justify a 250% price, it may explain a 10% overcost but by no means a 250% price, when producing and boxing sheet film is well cheaper than roll film. Also a 8x10 20/50 sheets box is (or was) a volume sell, cost of handling 20 individual roll sells is way higher than serving a sheet film box selling 10-20-50 rolls at the same time.
Look, as Foma sells Fomapan 8x10" at 2.38€ per sheet retail price then it's for sure that Portra 160 8x10" cost of the Base plus the packaging is well under $2 per sheet, without entering in the emulsion value that 17€ overprice ($30 each 8x10" sheet vs 120 roll price in the EU) per shot is a total abuse, but this is only my opinion, you may see it fair, this is another opinon...
...anyway I've no doubt that this high $30 per shot it's about marketing policy and nothing about industrial or distribution costs.
What it's clear to me is that this kind of policy is to kill LF color photography, many like me are to use 6x9cm roll film backs in a 4x5" view camera, lower sells for the sheets will end in LF product killing in the mid term.
US industrial tradition is about expanding customer base, mass-producing and taking advantage of scale cost reduction, but Portra sheet price is about monopoly management (single supplier of C-41 sheets), the counter of what made America great.
My guess is that KPP2 situation has a deep impact, sadly. There is a manufacturer that has a totally crashed exclusive distributor,
and this harms our loved film flourishment we are trying to push forward the most we can.