-98.19% is the change from 996 to 18
Calculation steps:
[( 18 - 996 ) ÷ 996] x 100 = -98.19%
Formula
Percentage change = [(18 - 996) / 996] x 100
Subtract the new number by the original number
18 - 996 = -978
-978 ÷ 996 = -0.9819277108433735
-0.9819277108433735 x 100 = -98.19%