-27.24% is the change from 837 to 609
Calculation steps:
[( 609 - 837 ) ÷ 837] x 100 = -27.24%
Formula
Percentage change = [(609 - 837) / 837] x 100
Subtract the new number by the original number
609 - 837 = -228
-228 ÷ 837 = -0.2724014336917563
-0.2724014336917563 x 100 = -27.24%