-43.47% is the change from 904 to 511
Calculation steps:
[( 511 - 904 ) ÷ 904] x 100 = -43.47%
Formula
Percentage change = [(511 - 904) / 904] x 100
Subtract the new number by the original number
511 - 904 = -393
-393 ÷ 904 = -0.43473451327433627
-0.43473451327433627 x 100 = -43.47%