HI ,I need help with very simple formula that doesent work for me ,I'm not an expert so I tried some advices form this and some other forums but its still giving me error message,help:(
well my formula should look something like this
maybe im useing old version but I have to input ; instead of , for the equasion to work,i also tried copy paste from some other posts but it still gives me error meassage ,ctrl+shift+enter dont work either...
is there any other way to do this??
Thanks a lot for help