-96.89% is the change from 610 to 19
Calculation steps:
[( 19 - 610 ) ÷ 610] x 100 = -96.89%
Formula
Percentage change = [(19 - 610) / 610] x 100
Subtract the new number by the original number
19 - 610 = -591
-591 ÷ 610 = -0.9688524590163935
-0.9688524590163935 x 100 = -96.89%