-39.21% is the change from 931 to 566
Calculation steps:
[( 566 - 931 ) ÷ 931] x 100 = -39.21%
Formula
Percentage change = [(566 - 931) / 931] x 100
Subtract the new number by the original number
566 - 931 = -365
-365 ÷ 931 = -0.3920515574650913
-0.3920515574650913 x 100 = -39.21%