Speedy Wonders

Hi, I´m using chartgeany for a while now. I love this tool and use it on a daily basis. So firs and foremost thank you for your effort. Now coming to my request: I would love to to have something like a trend line which would show me the percentage distance between two values. For example, when the all time high was at 100 USD and the current price is 80 USD the trend line should show a percentage distance between the two values of -20%. The other way round with a 52 weeky low of 80 and a current...