-48.75% is the change from 921 to 472
Calculation steps:
[( 472 - 921 ) ÷ 921] x 100 = -48.75%
Formula
Percentage change = [(472 - 921) / 921] x 100
Subtract the new number by the original number
472 - 921 = -449
-449 ÷ 921 = -0.48751357220412594
-0.48751357220412594 x 100 = -48.75%