-48.64% is the change from 921 to 473
Calculation steps:
[( 473 - 921 ) ÷ 921] x 100 = -48.64%
Formula
Percentage change = [(473 - 921) / 921] x 100
Subtract the new number by the original number
473 - 921 = -448
-448 ÷ 921 = -0.48642779587404994
-0.48642779587404994 x 100 = -48.64%