-98.06% is the change from 979 to 19
Calculation steps:
[( 19 - 979 ) ÷ 979] x 100 = -98.06%
Formula
Percentage change = [(19 - 979) / 979] x 100
Subtract the new number by the original number
19 - 979 = -960
-960 ÷ 979 = -0.9805924412665986
-0.9805924412665986 x 100 = -98.06%