-9.24% is the change from 942 to 855
Calculation steps:
[( 855 - 942 ) ÷ 942] x 100 = -9.24%
Formula
Percentage change = [(855 - 942) / 942] x 100
Subtract the new number by the original number
855 - 942 = -87
-87 ÷ 942 = -0.09235668789808917
-0.09235668789808917 x 100 = -9.24%