To calculate the entire demurrage cost, multiply the number of days your cargo exceeds the free time with the everyday rate. For example, if your container is delayed by 5 days as well as day-to-day demurrage charge is $100, You are looking at a further cost of $500 per container. https://20-less-than-container-lo03680.myparisblog.com/35501112/helping-the-others-realize-the-advantages-of-39-how-to-calculate-customs-duties-on-imports