-27.21% is the change from 849 to 618
Calculation steps:
[( 618 - 849 ) ÷ 849] x 100 = -27.21%
Formula
Percentage change = [(618 - 849) / 849] x 100
Subtract the new number by the original number
618 - 849 = -231
-231 ÷ 849 = -0.27208480565371024
-0.27208480565371024 x 100 = -27.21%