531.37% is the change from 102 to 644
Calculation steps:
[( 644 - 102 ) ÷ 102] x 100 = 531.37%
Formula
Percentage change = [(644 - 102) / 102] x 100
Subtract the new number by the original number
644 - 102 = 542
542 ÷ 102 = 5.313725490196078
5.313725490196078 x 100 = 531.37%