521.57% is the change from 102 to 634
Calculation steps:
[( 634 - 102 ) ÷ 102] x 100 = 521.57%
Formula
Percentage change = [(634 - 102) / 102] x 100
Subtract the new number by the original number
634 - 102 = 532
532 ÷ 102 = 5.215686274509804
5.215686274509804 x 100 = 521.57%