-9.31% is the change from 945 to 857
Calculation steps:
[( 857 - 945 ) ÷ 945] x 100 = -9.31%
Formula
Percentage change = [(857 - 945) / 945] x 100
Subtract the new number by the original number
857 - 945 = -88
-88 ÷ 945 = -0.09312169312169312
-0.09312169312169312 x 100 = -9.31%