-42.78% is the change from 907 to 519
Calculation steps:
[( 519 - 907 ) ÷ 907] x 100 = -42.78%
Formula
Percentage change = [(519 - 907) / 907] x 100
Subtract the new number by the original number
519 - 907 = -388
-388 ÷ 907 = -0.42778390297684676
-0.42778390297684676 x 100 = -42.78%