// values are in %, so on right Y axis a value of 50 means 50% above the average volume of set length (default of 20) These important confirming volume spurts often end the day with a 50 percent to 500 percent increase in the average daily volume of the stock. - Jesse Livermore
when daily volume increases by 50% of it average daily volume, it is a warning sign in the possible change of trend or pivotal point