After this calculate the value is divide by the value of and multiplied by hundred to get a percent value from 0% to 100%.
The delta line is a from the differences of the two values.
How it should be read?
If positive values are greater than negative values than the is happen on higher prices and not lower.
If positive values are lower than negative values than the is happen on lower prices and not higher.
If you know that in which market you would opt in? Is it less risk the prior?