-45.15% is the change from 618 to 339
Calculation steps:
[( 339 - 618 ) ÷ 618] x 100 = -45.15%
Formula
Percentage change = [(339 - 618) / 618] x 100
Subtract the new number by the original number
339 - 618 = -279
-279 ÷ 618 = -0.45145631067961167
-0.45145631067961167 x 100 = -45.15%