-98.09% is the change from 942 to 18
Calculation steps:
[( 18 - 942 ) ÷ 942] x 100 = -98.09%
Formula
Percentage change = [(18 - 942) / 942] x 100
Subtract the new number by the original number
18 - 942 = -924
-924 ÷ 942 = -0.9808917197452229
-0.9808917197452229 x 100 = -98.09%