-82.36% is the change from 771 to 136
Calculation steps:
[( 136 - 771 ) ÷ 771] x 100 = -82.36%
Formula
Percentage change = [(136 - 771) / 771] x 100
Subtract the new number by the original number
136 - 771 = -635
-635 ÷ 771 = -0.8236057068741893
-0.8236057068741893 x 100 = -82.36%