-30.4% is the change from 875 to 609
Calculation steps:
[( 609 - 875 ) ÷ 875] x 100 = -30.4%
Formula
Percentage change = [(609 - 875) / 875] x 100
Subtract the new number by the original number
609 - 875 = -266
-266 ÷ 875 = -0.304
-0.304 x 100 = -30.4%