Percentage (%) of Arrow Speed Lost for each Manufacturer
This graph - I hope - is pretty self explanatory. It's how much speed loss all of the arrows tested from each manufacturer as an average for the entire group of arrows shot at each distance.
For Example: I took all of the arrows shot from Black Eagle, took their average speed loss at each distance and plotted them on a graph.
The big question (I think) is what's Extrapolate?
Extrapolate is a mathematical formula that is used to project what the (in this case) speed loss would be after the actual data has been uploaded. In other words, it's a scientific projection of the amount of the arrow speed loss without having to actually shoot at 70 to 100 yards.