-10.51% is the change from 942 to 843
Calculation steps:
[( 843 - 942 ) ÷ 942] x 100 = -10.51%
Formula
Percentage change = [(843 - 942) / 942] x 100
Subtract the new number by the original number
843 - 942 = -99
-99 ÷ 942 = -0.10509554140127389
-0.10509554140127389 x 100 = -10.51%