Hi Jodie, this is just a voluntary run forum so anyone is free to start
up or improve challenges anytime they think it may benefit someone.
You are right about the % loss, so please feel free (if you have the time) to use your organising skills from the other forum to run this
challenge and calculate everyones weightloss % if you'd like.
Unfortunately my time is still a little limited due to running a business, so I don't have the time to work out everyones percentages and that's why I usually get everyone at the end of each month to just calculate their own monthly loss so they can be simply recorded into our Hall of Fame.