-56.1% is the change from 861 to 378
Calculation steps:
[( 378 - 861 ) ÷ 861] x 100 = -56.1%
Formula
Percentage change = [(378 - 861) / 861] x 100
Subtract the new number by the original number
378 - 861 = -483
-483 ÷ 861 = -0.5609756097560976
-0.5609756097560976 x 100 = -56.1%