-76.19% is the change from 609 to 145
Calculation steps:
[( 145 - 609 ) ÷ 609] x 100 = -76.19%
Formula
Percentage change = [(145 - 609) / 609] x 100
Subtract the new number by the original number
145 - 609 = -464
-464 ÷ 609 = -0.7619047619047619
-0.7619047619047619 x 100 = -76.19%