-39.72% is the change from 939 to 566
Calculation steps:
[( 566 - 939 ) ÷ 939] x 100 = -39.72%
Formula
Percentage change = [(566 - 939) / 939] x 100
Subtract the new number by the original number
566 - 939 = -373
-373 ÷ 939 = -0.3972310969116081
-0.3972310969116081 x 100 = -39.72%