-98.09% is the change from 836 to 16
Calculation steps:
[( 16 - 836 ) ÷ 836] x 100 = -98.09%
Formula
Percentage change = [(16 - 836) / 836] x 100
Subtract the new number by the original number
16 - 836 = -820
-820 ÷ 836 = -0.9808612440191388
-0.9808612440191388 x 100 = -98.09%