-16.99% is the change from 618 to 513
Calculation steps:
[( 513 - 618 ) ÷ 618] x 100 = -16.99%
Formula
Percentage change = [(513 - 618) / 618] x 100
Subtract the new number by the original number
513 - 618 = -105
-105 ÷ 618 = -0.16990291262135923
-0.16990291262135923 x 100 = -16.99%