-54.78% is the change from 836 to 378
Calculation steps:
[( 378 - 836 ) ÷ 836] x 100 = -54.78%
Formula
Percentage change = [(378 - 836) / 836] x 100
Subtract the new number by the original number
378 - 836 = -458
-458 ÷ 836 = -0.5478468899521531
-0.5478468899521531 x 100 = -54.78%