-43.94% is the change from 908 to 509
Calculation steps:
[( 509 - 908 ) ÷ 908] x 100 = -43.94%
Formula
Percentage change = [(509 - 908) / 908] x 100
Subtract the new number by the original number
509 - 908 = -399
-399 ÷ 908 = -0.43942731277533037
-0.43942731277533037 x 100 = -43.94%