-77.99% is the change from 618 to 136
Calculation steps:
[( 136 - 618 ) ÷ 618] x 100 = -77.99%
Formula
Percentage change = [(136 - 618) / 618] x 100
Subtract the new number by the original number
136 - 618 = -482
-482 ÷ 618 = -0.7799352750809061
-0.7799352750809061 x 100 = -77.99%