539% is the change from 100 to 639
Calculation steps:
[( 639 - 100 ) ÷ 100] x 100 = 539%
Formula
Percentage change = [(639 - 100) / 100] x 100
Subtract the new number by the original number
639 - 100 = 539
539 ÷ 100 = 5.39
5.39 x 100 = 539%
Example