Every price increase for goods and services has an underlying reason or cause for it.
I can only guess (more Captain Obvious conspiracy theories) it may be the increase by shipping insurers after the Baltimore bridge incident AND what is happening with ship attacks off the northeast coast of Africa trying to go through the Suez Canal.
Or it`s just simply international business economics due to the governmental trade policies of the current political fiascos by both parties in the USA.
(You, the fellow Autopian reader, can interpret "fiascos" for yourself, but I think you know what it implies... Think shipping companies watching the recent presidential candidate debate about tariffs)