-83.21% is the change from 834 to 140
Calculation steps:
[( 140 - 834 ) ÷ 834] x 100 = -83.21%
Formula
Percentage change = [(140 - 834) / 834] x 100
Subtract the new number by the original number
140 - 834 = -694
-694 ÷ 834 = -0.8321342925659473
-0.8321342925659473 x 100 = -83.21%