-27.1% is the change from 620 to 452
Calculation steps:
[( 452 - 620 ) ÷ 620] x 100 = -27.1%
Formula
Percentage change = [(452 - 620) / 620] x 100
Subtract the new number by the original number
452 - 620 = -168
-168 ÷ 620 = -0.2709677419354839
-0.2709677419354839 x 100 = -27.1%