-52.87% is the change from 836 to 394
Calculation steps:
[( 394 - 836 ) ÷ 836] x 100 = -52.87%
Formula
Percentage change = [(394 - 836) / 836] x 100
Subtract the new number by the original number
394 - 836 = -442
-442 ÷ 836 = -0.5287081339712919
-0.5287081339712919 x 100 = -52.87%