How do we find percentage of weight lost?????????

Who's the family mathematician - it certainly isn't me - I only do 2nd grade math and we don't do percentages. Okay, so this is the way (I think) you figure out percentage of weight loss. Take your current weight, divide it by your starting weight at the beginning of the week. That will give you a .985 or something like that, depending on your weight lost. Move the decimal point over 2 places to make 98.5. Then take that number away from 100 and that will give you your percentage of weight loss. For example, let's say I weighed 200 pounds at the beginning of the week and I weighed 195 at the end of the week - a loss of 5 pounds. I divide 195 by 200 which gives me .975. Move the decimal over 2 places so that you have 97.5. Now subtract that number from 100 (100%). That answer is 2.5% which is the percentage of weight lost. (If anyone can figure how to do it more easily, please let us all know!)