Lately there are many news stories about a tariff being put on a certain "worth of goods". How is "worth of goods" calculated? For example if the tariff was put on , say, pickles, would the "worth" of pickles be computed as the total value of pickles imported in a year before the tariff? Or would it be calculated based on sales over a shorter time period? Or would it simply be the price of a ton of pickles - or one jar of pickles?