-82.97% is the change from 834 to 142
Calculation steps:
[( 142 - 834 ) ÷ 834] x 100 = -82.97%
Formula
Percentage change = [(142 - 834) / 834] x 100
Subtract the new number by the original number
142 - 834 = -692
-692 ÷ 834 = -0.829736211031175
-0.829736211031175 x 100 = -82.97%