-10.45% is the change from 957 to 857
Calculation steps:
[( 857 - 957 ) ÷ 957] x 100 = -10.45%
Formula
Percentage change = [(857 - 957) / 957] x 100
Subtract the new number by the original number
857 - 957 = -100
-100 ÷ 957 = -0.1044932079414838
-0.1044932079414838 x 100 = -10.45%