-82.13% is the change from 834 to 149
Calculation steps:
[( 149 - 834 ) ÷ 834] x 100 = -82.13%
Formula
Percentage change = [(149 - 834) / 834] x 100
Subtract the new number by the original number
149 - 834 = -685
-685 ÷ 834 = -0.8213429256594724
-0.8213429256594724 x 100 = -82.13%