-73.23% is the change from 609 to 163
Calculation steps:
[( 163 - 609 ) ÷ 609] x 100 = -73.23%
Formula
Percentage change = [(163 - 609) / 609] x 100
Subtract the new number by the original number
163 - 609 = -446
-446 ÷ 609 = -0.7323481116584565
-0.7323481116584565 x 100 = -73.23%