How do you calculate grams and percentages in heavy whipping cream?

To calculate grams and percentages in heavy whipping cream, first determine the total weight of the cream in grams. For example, if you have 500 grams of heavy whipping cream, and you want to find the percentage of fat, check the label for its fat content, typically around 36-40%. To find the fat in grams, multiply the total weight by the percentage (for 36% fat, it's 500g x 0.36 = 180g of fat). This method can be applied to other components by adjusting the percentage based on the nutritional information.