-54.57% is the change from 821 to 373
Calculation steps:
[( 373 - 821 ) ÷ 821] x 100 = -54.57%
Formula
Percentage change = [(373 - 821) / 821] x 100
Subtract the new number by the original number
373 - 821 = -448
-448 ÷ 821 = -0.5456760048721072
-0.5456760048721072 x 100 = -54.57%