-0.64% is the change from 937 to 931
Calculation steps:
[( 931 - 937 ) ÷ 937] x 100 = -0.64%
Formula
Percentage change = [(931 - 937) / 937] x 100
Subtract the new number by the original number
931 - 937 = -6
-6 ÷ 937 = -0.0064034151547491995
-0.0064034151547491995 x 100 = -0.64%