-98.09% is the change from 996 to 19
Calculation steps:
[( 19 - 996 ) ÷ 996] x 100 = -98.09%
Formula
Percentage change = [(19 - 996) / 996] x 100
Subtract the new number by the original number
19 - 996 = -977
-977 ÷ 996 = -0.9809236947791165
-0.9809236947791165 x 100 = -98.09%