-0.93% is the change from 966 to 957
Calculation steps:
[( 957 - 966 ) ÷ 966] x 100 = -0.93%
Formula
Percentage change = [(957 - 966) / 966] x 100
Subtract the new number by the original number
957 - 966 = -9
-9 ÷ 966 = -0.009316770186335404
-0.009316770186335404 x 100 = -0.93%