How can one that is not an economics major tell what is inflated pricing and gouging?

Just by going to the grocery store and seeing how much everything has risen. The "middle men" are getting rich. When the price of a barrel of oil goes up then the price gouging starts BUT when it goes down those prices that were risen never do. When it rises again the other prices are risen again on top of the old rise, that's why everything is high and stays that way. You don't have to be an economics major