The price increases were largely due to the exchange rate which negatively impacts both European consumers and Apple.
The pre-VAT price of the 128GB iPhone 14 Plus is €960 in France which at the current exchange rate is around $944 USD. That's roughly the same as the pre-sales tax price ($929) in the U.S.
The pre-VAT price of the 128GB iPhone 14 is €835 in France which at the current exchange rate is around $822 USD. That's roughly the same as the pre-sales tax price ($829) in the U.S.
Apple's choices here were essentially to either lower profit margins and therefore total profits to keep euro selling prices the same OR keep profit margins the same by raising euro selling prices which would likely result in lower total profits due to decreased sales.
I think the message is clear that the current iPhone prices are more sustainable in the US than they are in Europe in the current climate. It’s up to Apple whether they are happy to continue with this strategy.