-47.92% is the change from 939 to 489
Calculation steps:
[( 489 - 939 ) ÷ 939] x 100 = -47.92%
Formula
Percentage change = [(489 - 939) / 939] x 100
Subtract the new number by the original number
489 - 939 = -450
-450 ÷ 939 = -0.4792332268370607
-0.4792332268370607 x 100 = -47.92%