-54.64% is the change from 840 to 381
Calculation steps:
[( 381 - 840 ) ÷ 840] x 100 = -54.64%
Formula
Percentage change = [(381 - 840) / 840] x 100
Subtract the new number by the original number
381 - 840 = -459
-459 ÷ 840 = -0.5464285714285714
-0.5464285714285714 x 100 = -54.64%