-99.03% is the change from 618 to 6
Calculation steps:
[( 6 - 618 ) ÷ 618] x 100 = -99.03%
Formula
Percentage change = [(6 - 618) / 618] x 100
Subtract the new number by the original number
6 - 618 = -612
-612 ÷ 618 = -0.9902912621359223
-0.9902912621359223 x 100 = -99.03%