-42.81% is the change from 904 to 517
Calculation steps:
[( 517 - 904 ) ÷ 904] x 100 = -42.81%
Formula
Percentage change = [(517 - 904) / 904] x 100
Subtract the new number by the original number
517 - 904 = -387
-387 ÷ 904 = -0.4280973451327434
-0.4280973451327434 x 100 = -42.81%