-99.68% is the change from 619 to 2
Calculation steps:
[( 2 - 619 ) ÷ 619] x 100 = -99.68%
Formula
Percentage change = [(2 - 619) / 619] x 100
Subtract the new number by the original number
2 - 619 = -617
-617 ÷ 619 = -0.9967689822294022
-0.9967689822294022 x 100 = -99.68%