Thanks for taking the time to read this. We are going to be having our own weight loss / BF% loss contest at my work. In order to make it fair we needed to come up with a formula. I wanted to run it by all of you to get your thoughts. First some prerequisites. The contest is approx 12 weeks long. Each person is putting in $50. You will have your weight and BF% taken at the beginning and the end. Pretty simple. The winner gets half the money and the rest goes towards a party for the rest of us. Or I was going to propose we give it to charity. So I wanted to get your thoughts on the formula. Here goes.

First Weigh In - Final Weigh In = Total Weight Lost. In order to keep everyones weight on the same level we need to come up with a %. To do that we divide the Total Weight Lost by the First Weigh In

Next is BF%. We use the same concept. First BF% - Final BF% = Total BF% Lost. Again we need to change this to a percentage of the original. To do that we divide the Total BF% lost by the First BF%. This gives us the % of BF lost based on the original BF%.

So now we have two numbers. Since there can only be one number I was thinking about just averaging the two. I am unsure if this would be fair. So my questions are is my formula logical or am I just way off base? Second, would it be fair to average the last two numbers? Thanks again for taking the time to read this. All suggestions are welcome and I have never claimed to be a math genius.