-40.26% is the change from 939 to 561
Calculation steps:
[( 561 - 939 ) ÷ 939] x 100 = -40.26%
Formula
Percentage change = [(561 - 939) / 939] x 100
Subtract the new number by the original number
561 - 939 = -378
-378 ÷ 939 = -0.402555910543131
-0.402555910543131 x 100 = -40.26%