-76.32% is the change from 836 to 198
Calculation steps:
[( 198 - 836 ) ÷ 836] x 100 = -76.32%
Formula
Percentage change = [(198 - 836) / 836] x 100
Subtract the new number by the original number
198 - 836 = -638
-638 ÷ 836 = -0.7631578947368421
-0.7631578947368421 x 100 = -76.32%