-8.07% is the change from 942 to 866
Calculation steps:
[( 866 - 942 ) ÷ 942] x 100 = -8.07%
Formula
Percentage change = [(866 - 942) / 942] x 100
Subtract the new number by the original number
866 - 942 = -76
-76 ÷ 942 = -0.08067940552016985
-0.08067940552016985 x 100 = -8.07%