-27.15% is the change from 836 to 609
Calculation steps:
[( 609 - 836 ) ÷ 836] x 100 = -27.15%
Formula
Percentage change = [(609 - 836) / 836] x 100
Subtract the new number by the original number
609 - 836 = -227
-227 ÷ 836 = -0.2715311004784689
-0.2715311004784689 x 100 = -27.15%