-79.03% is the change from 620 to 130
Calculation steps:
[( 130 - 620 ) ÷ 620] x 100 = -79.03%
Formula
Percentage change = [(130 - 620) / 620] x 100
Subtract the new number by the original number
130 - 620 = -490
-490 ÷ 620 = -0.7903225806451613
-0.7903225806451613 x 100 = -79.03%