-83.12% is the change from 764 to 129
Calculation steps:
[( 129 - 764 ) ÷ 764] x 100 = -83.12%
Formula
Percentage change = [(129 - 764) / 764] x 100
Subtract the new number by the original number
129 - 764 = -635
-635 ÷ 764 = -0.831151832460733
-0.831151832460733 x 100 = -83.12%