-83.55% is the change from 766 to 126
Calculation steps:
[( 126 - 766 ) ÷ 766] x 100 = -83.55%
Formula
Percentage change = [(126 - 766) / 766] x 100
Subtract the new number by the original number
126 - 766 = -640
-640 ÷ 766 = -0.835509138381201
-0.835509138381201 x 100 = -83.55%