-82.06% is the change from 836 to 150
Calculation steps:
[( 150 - 836 ) ÷ 836] x 100 = -82.06%
Formula
Percentage change = [(150 - 836) / 836] x 100
Subtract the new number by the original number
150 - 836 = -686
-686 ÷ 836 = -0.8205741626794258
-0.8205741626794258 x 100 = -82.06%