-53.31% is the change from 921 to 430
Calculation steps:
[( 430 - 921 ) ÷ 921] x 100 = -53.31%
Formula
Percentage change = [(430 - 921) / 921] x 100
Subtract the new number by the original number
430 - 921 = -491
-491 ÷ 921 = -0.5331161780673181
-0.5331161780673181 x 100 = -53.31%