-30.26% is the change from 618 to 431
Calculation steps:
[( 431 - 618 ) ÷ 618] x 100 = -30.26%
Formula
Percentage change = [(431 - 618) / 618] x 100
Subtract the new number by the original number
431 - 618 = -187
-187 ÷ 618 = -0.30258899676375406
-0.30258899676375406 x 100 = -30.26%