Greetings
I would like to ask if anyone knows how to display change on a bar. What I am looking to accomplish is to display the amount of difference from the last event, or a certain time such as 5 mins ago. An example would be as such; 5:00am pressure = 100, 5:05am (now) pressure = 110, then 110 (now) minus 100 (5 mins ago) = 10+ The positive 10 is what I would like to display on the bar. This is to help identify changes as they move through a system. Any help would be greatly appreciated.
Thanks!