-99.68% is the change from 622 to 2
Calculation steps:
[( 2 - 622 ) ÷ 622] x 100 = -99.68%
Formula
Percentage change = [(2 - 622) / 622] x 100
Subtract the new number by the original number
2 - 622 = -620
-620 ÷ 622 = -0.9967845659163987
-0.9967845659163987 x 100 = -99.68%