By calculate I don't mean that when cooking you get the macros of the ingredients you put in, but rather once you've finished cooking and take a, say, 300g portion of said cooked food?
See the trouble I had was I made some chicken-macaroni-casserole and got the ingredients' macros and I weighed it after cooking, removed the weight, and got the weight I thought was the foods weight. I then made a meal of said ingredients macros at 1915g, which was how much it weighed. Then I could use it to get different weight macroes. So I took a 350g (weighed at the same scale) plate of the casserole and let it cool down. Later on the day I took another plate, this time 300g of weight.
Then I decided to re-weigh the leftover food, which calculated almost 800g less than when I first weighed it. That means that all the calculations I made earlier are basically worthless? The numbers don't add up, and as a very data-centric (CICO is basically how I live now) guy this really demoralizes me hard. Where do you guys think I made the critical error of miscalculation? I weighed the big dish of casserole in so many different angles to get to the number I found the most representative for the true weight. Also I'm sure of the plate weights! Just so disappointed at myself right now..