-91.08% is the change from 942 to 84
Calculation steps:
[( 84 - 942 ) ÷ 942] x 100 = -91.08%
Formula
Percentage change = [(84 - 942) / 942] x 100
Subtract the new number by the original number
84 - 942 = -858
-858 ÷ 942 = -0.910828025477707
-0.910828025477707 x 100 = -91.08%