Someone is always wrong on the internet. Let us start.

As for the purchase price of milk... I live in Vologda, the homeland of milk and oil. Product output from the factory 1 liter - 1 (!!!) Ruble, in the store litre package 17-20 rubles. Today is Tarot.

I live in a village with two cows. A bottle of milk (3 liters) is given for 40 rubles.
What can I say? Here is what you have milk and plants, you know what you are fed and sung.