-27.67% is the change from 842 to 609
Calculation steps:
[( 609 - 842 ) ÷ 842] x 100 = -27.67%
Formula
Percentage change = [(609 - 842) / 842] x 100
Subtract the new number by the original number
609 - 842 = -233
-233 ÷ 842 = -0.27672209026128264
-0.27672209026128264 x 100 = -27.67%