-70.44% is the change from 609 to 180
Calculation steps:
[( 180 - 609 ) ÷ 609] x 100 = -70.44%
Formula
Percentage change = [(180 - 609) / 609] x 100
Subtract the new number by the original number
180 - 609 = -429
-429 ÷ 609 = -0.7044334975369458
-0.7044334975369458 x 100 = -70.44%