-81.65% is the change from 834 to 153
Calculation steps:
[( 153 - 834 ) ÷ 834] x 100 = -81.65%
Formula
Percentage change = [(153 - 834) / 834] x 100
Subtract the new number by the original number
153 - 834 = -681
-681 ÷ 834 = -0.8165467625899281
-0.8165467625899281 x 100 = -81.65%