100% reference line chart

[teodosio]

Hi guys, I need to make a chart but I am not finding useful info online.
I need to make a chart where I compare different brands in percentage terms. My brand has to always be 100% along time, and the others have to display the percentage variation from my brand.
Thank you in advance for the help

[NickyC]

Hi
I think the easiest way to do this would be to create a table of relative percentage based on your original data and graph that. The attached shows one possible way to do that.