-53.71% is the change from 821 to 380
Calculation steps:
[( 380 - 821 ) ÷ 821] x 100 = -53.71%
Formula
Percentage change = [(380 - 821) / 821] x 100
Subtract the new number by the original number
380 - 821 = -441
-441 ÷ 821 = -0.5371498172959805
-0.5371498172959805 x 100 = -53.71%