-56.32% is the change from 609 to 266
Calculation steps:
[( 266 - 609 ) ÷ 609] x 100 = -56.32%
Formula
Percentage change = [(266 - 609) / 609] x 100
Subtract the new number by the original number
266 - 609 = -343
-343 ÷ 609 = -0.5632183908045977
-0.5632183908045977 x 100 = -56.32%