-69.19% is the change from 620 to 191
Calculation steps:
[( 191 - 620 ) ÷ 620] x 100 = -69.19%
Formula
Percentage change = [(191 - 620) / 620] x 100
Subtract the new number by the original number
191 - 620 = -429
-429 ÷ 620 = -0.6919354838709677
-0.6919354838709677 x 100 = -69.19%