-68.39% is the change from 620 to 196
Calculation steps:
[( 196 - 620 ) ÷ 620] x 100 = -68.39%
Formula
Percentage change = [(196 - 620) / 620] x 100
Subtract the new number by the original number
196 - 620 = -424
-424 ÷ 620 = -0.6838709677419355
-0.6838709677419355 x 100 = -68.39%