-96.72% is the change from 579 to 19
Calculation steps:
[( 19 - 579 ) ÷ 579] x 100 = -96.72%
Formula
Percentage change = [(19 - 579) / 579] x 100
Subtract the new number by the original number
19 - 579 = -560
-560 ÷ 579 = -0.9671848013816926
-0.9671848013816926 x 100 = -96.72%
Example