-27.76% is the change from 843 to 609
Calculation steps:
[( 609 - 843 ) ÷ 843] x 100 = -27.76%
Formula
Percentage change = [(609 - 843) / 843] x 100
Subtract the new number by the original number
609 - 843 = -234
-234 ÷ 843 = -0.2775800711743772
-0.2775800711743772 x 100 = -27.76%