-73.07% is the change from 609 to 164
Calculation steps:
[( 164 - 609 ) ÷ 609] x 100 = -73.07%
Formula
Percentage change = [(164 - 609) / 609] x 100
Subtract the new number by the original number
164 - 609 = -445
-445 ÷ 609 = -0.7307060755336617
-0.7307060755336617 x 100 = -73.07%