-81.96% is the change from 765 to 138
Calculation steps:
[( 138 - 765 ) ÷ 765] x 100 = -81.96%
Formula
Percentage change = [(138 - 765) / 765] x 100
Subtract the new number by the original number
138 - 765 = -627
-627 ÷ 765 = -0.8196078431372549
-0.8196078431372549 x 100 = -81.96%