Hi,
If you open the corresponding worksheet (which is named Bin1 etc), you will see that what is plotted here is the last column of the worksheet called Perc. This quantity is just the running/cumulative sum expressed as a % of the total (sum of all bin counts).
For example, if I start with numbers 1,2,3,4,5,6 in a col and perform this operation, the bin worksheet shows:
A Counts1 Sum1 Perc1
1 1 1 16.66667
3 2 3 50
5 2 5 83.33333
7 1 6 100
Sum1 is just cumulative/running sum of bin counts and Perc1 is Sum1 expressed in % of total of all bin counts (6 in this example).
Easwar
OriginLab