-27.74% is the change from 620 to 448
Calculation steps:
[( 448 - 620 ) ÷ 620] x 100 = -27.74%
Formula
Percentage change = [(448 - 620) / 620] x 100
Subtract the new number by the original number
448 - 620 = -172
-172 ÷ 620 = -0.27741935483870966
-0.27741935483870966 x 100 = -27.74%