help with this working out group percentage

[wannabeskinny]

hi all i have worked out the individuals percentage loss no probs, but can not work out the groups overall percentage loss, can not open spread sheet as i dont have excel on computer can anyone please tell me the mathamatical way of working out the total percentage

thanks you

 

[susan70]

add all the wieghts before losses. eg 1200lbs
add all lbs lost. eg 21lb

then do the sum
21 divided by 1200 times 100 =1.75%

lbs lost divided by total weights times 100, that should give you the team %

 

[IreneH]

thanks Susan

Have replied to your pm
Irene x