-73.71% is the change from 620 to 163
Calculation steps:
[( 163 - 620 ) ÷ 620] x 100 = -73.71%
Formula
Percentage change = [(163 - 620) / 620] x 100
Subtract the new number by the original number
163 - 620 = -457
-457 ÷ 620 = -0.7370967741935484
-0.7370967741935484 x 100 = -73.71%