Keeping tabs on inflation

Just a few minutes ago I got back from grocery shopping and getting gas (not to be mistaken with getting gassed😃).

Groceries for one person for seven days came to $81.31 (75.6 Euros). The only nonfood item was a single 2-liter Diet Pepsi.

Gasoline was $3.59 per gallon or something like .94 Euros per Liter.

How does that stack up with where you are?