-9.02% is the change from 942 to 857
Calculation steps:
[( 857 - 942 ) ÷ 942] x 100 = -9.02%
Formula
Percentage change = [(857 - 942) / 942] x 100
Subtract the new number by the original number
857 - 942 = -85
-85 ÷ 942 = -0.09023354564755838
-0.09023354564755838 x 100 = -9.02%