Tip:
Supermarkets are hypercapitalists. Hence, the inflation is an opportunity to exploit you. People aren't used to the new prices, and therefore they can raised more than rate of inflation, sometimes even double or triple the rate.
But local shops don't have such policies in general. They do their best to shield their customers and retain them that way.
You may find many products now cheaper in small specialty shops than in the supermarket and also generally they are of higher quality.