The way to calculate this balance of trade is to take the total value of all imports and subtract the total value of all exports between the two countries, or between one country and the rest of the world.How to calculate balance of trade as a percentage?
Divide the country's balance of trade by its gross domestic product. Using the example, when you divide $100 million by $30 billion you get 0.033. Multiply the result from step 5 to calculate the country's balance of trade as a percentage of gross domestic product. In the example, you would multiply 0.033 by 100 and 3.3.How is the balance of trade measured?
One of the ways that a country measures global trade is by calculating its balance of trade. Balance of trade is the difference between the value of a country's imports and its exports, as follows: value of exports - value of imports = balance of trade