-42.87% is the change from 905 to 517
Calculation steps:
[( 517 - 905 ) ÷ 905] x 100 = -42.87%
Formula
Percentage change = [(517 - 905) / 905] x 100
Subtract the new number by the original number
517 - 905 = -388
-388 ÷ 905 = -0.4287292817679558
-0.4287292817679558 x 100 = -42.87%