-81.6% is the change from 837 to 154
Calculation steps:
[( 154 - 837 ) ÷ 837] x 100 = -81.6%
Formula
Percentage change = [(154 - 837) / 837] x 100
Subtract the new number by the original number
154 - 837 = -683
-683 ÷ 837 = -0.8160095579450418
-0.8160095579450418 x 100 = -81.6%