Hey there Hoppereenos. A short time ago we began to notice readers stating that they were seeing a BIG cost increase in their donut pricing. As most of us are in the U.S. We didn’t see this change. (EA is based out of California, so most of their information is set within in the U.S.)
Here is the current U.S. cost of donuts for the game on an Android device as of 4-12-2014.