-1.28% is the change from 939 to 927
Calculation steps:
[( 927 - 939 ) ÷ 939] x 100 = -1.28%
Formula
Percentage change = [(927 - 939) / 939] x 100
Subtract the new number by the original number
927 - 939 = -12
-12 ÷ 939 = -0.012779552715654952
-0.012779552715654952 x 100 = -1.28%