-96.22% is the change from 609 to 23
Calculation steps:
[( 23 - 609 ) ÷ 609] x 100 = -96.22%
Formula
Percentage change = [(23 - 609) / 609] x 100
Subtract the new number by the original number
23 - 609 = -586
-586 ÷ 609 = -0.9622331691297209
-0.9622331691297209 x 100 = -96.22%