-53.59% is the change from 821 to 381
Calculation steps:
[( 381 - 821 ) ÷ 821] x 100 = -53.59%
Formula
Percentage change = [(381 - 821) / 821] x 100
Subtract the new number by the original number
381 - 821 = -440
-440 ÷ 821 = -0.535931790499391
-0.535931790499391 x 100 = -53.59%