-89.33% is the change from 609 to 65
Calculation steps:
[( 65 - 609 ) ÷ 609] x 100 = -89.33%
Formula
Percentage change = [(65 - 609) / 609] x 100
Subtract the new number by the original number
65 - 609 = -544
-544 ÷ 609 = -0.8932676518883416
-0.8932676518883416 x 100 = -89.33%