I see the package says 1/2 cup or whatever and then 1 cup prepared is different calories? The calories on the box, so can i make the whole bag of rice and just divide it up into 1/2 cups with measuring cup or since the rice gets bigger, is it now a cup? i hope you get what im saying, im just trying to eat half cup of rice, i know i could measure half cup before cooked in measuring cup, but i dont want to do individual i want to cook the whole pot of rice and just divide it.