-79.16% is the change from 619 to 129
Calculation steps:
[( 129 - 619 ) ÷ 619] x 100 = -79.16%
Formula
Percentage change = [(129 - 619) / 619] x 100
Subtract the new number by the original number
129 - 619 = -490
-490 ÷ 619 = -0.7915993537964459
-0.7915993537964459 x 100 = -79.16%