-85.55% is the change from 609 to 88
Calculation steps:
[( 88 - 609 ) ÷ 609] x 100 = -85.55%
Formula
Percentage change = [(88 - 609) / 609] x 100
Subtract the new number by the original number
88 - 609 = -521
-521 ÷ 609 = -0.8555008210180624
-0.8555008210180624 x 100 = -85.55%