-2.72% is the change from 957 to 931
Calculation steps:
[( 931 - 957 ) ÷ 957] x 100 = -2.72%
Formula
Percentage change = [(931 - 957) / 957] x 100
Subtract the new number by the original number
931 - 957 = -26
-26 ÷ 957 = -0.027168234064785787
-0.027168234064785787 x 100 = -2.72%