The purpose is to give an idea of the extents that the current move could make and possibly use this information for longer term swing or position trades.
The following details the current move and and where it sits based on past performance.
Red Box - The lowest range based on the study, a total of 254 pips.
Green Box - The average range for all of the boxes, a total of 535 pips.
Blue Box - The maximum ranged based on the study, a total of 932 pips.