-31.86% is the change from 907 to 618
Calculation steps:
[( 618 - 907 ) ÷ 907] x 100 = -31.86%
Formula
Percentage change = [(618 - 907) / 907] x 100
Subtract the new number by the original number
618 - 907 = -289
-289 ÷ 907 = -0.31863285556780596
-0.31863285556780596 x 100 = -31.86%