-73.55% is the change from 620 to 164
Calculation steps:
[( 164 - 620 ) ÷ 620] x 100 = -73.55%
Formula
Percentage change = [(164 - 620) / 620] x 100
Subtract the new number by the original number
164 - 620 = -456
-456 ÷ 620 = -0.7354838709677419
-0.7354838709677419 x 100 = -73.55%