-43.36% is the change from 904 to 512
Calculation steps:
[( 512 - 904 ) ÷ 904] x 100 = -43.36%
Formula
Percentage change = [(512 - 904) / 904] x 100
Subtract the new number by the original number
512 - 904 = -392
-392 ÷ 904 = -0.4336283185840708
-0.4336283185840708 x 100 = -43.36%