-82.78% is the change from 813 to 140
Calculation steps:
[( 140 - 813 ) ÷ 813] x 100 = -82.78%
Formula
Percentage change = [(140 - 813) / 813] x 100
Subtract the new number by the original number
140 - 813 = -673
-673 ÷ 813 = -0.8277982779827798
-0.8277982779827798 x 100 = -82.78%