-82.52% is the change from 721 to 126
Calculation steps:
[( 126 - 721 ) ÷ 721] x 100 = -82.52%
Formula
Percentage change = [(126 - 721) / 721] x 100
Subtract the new number by the original number
126 - 721 = -595
-595 ÷ 721 = -0.8252427184466019
-0.8252427184466019 x 100 = -82.52%