61800% is the change from 1 to 619
Calculation steps:
[( 619 - 1 ) ÷ 1] x 100 = 61800%
Formula
Percentage change = [(619 - 1) / 1] x 100
Subtract the new number by the original number
619 - 1 = 618
618 ÷ 1 = 618
618 x 100 = 61800%
Example