-54.34% is the change from 922 to 421
Calculation steps:
[( 421 - 922 ) ÷ 922] x 100 = -54.34%
Formula
Percentage change = [(421 - 922) / 922] x 100
Subtract the new number by the original number
421 - 922 = -501
-501 ÷ 922 = -0.5433839479392625
-0.5433839479392625 x 100 = -54.34%