-81.84% is the change from 771 to 140
Calculation steps:
[( 140 - 771 ) ÷ 771] x 100 = -81.84%
Formula
Percentage change = [(140 - 771) / 771] x 100
Subtract the new number by the original number
140 - 771 = -631
-631 ÷ 771 = -0.8184176394293126
-0.8184176394293126 x 100 = -81.84%