-82.74% is the change from 811 to 140
Calculation steps:
[( 140 - 811 ) ÷ 811] x 100 = -82.74%
Formula
Percentage change = [(140 - 811) / 811] x 100
Subtract the new number by the original number
140 - 811 = -671
-671 ÷ 811 = -0.8273736128236745
-0.8273736128236745 x 100 = -82.74%