530.3% is the change from 99 to 624
Calculation steps:
[( 624 - 99 ) ÷ 99] x 100 = 530.3%
Formula
Percentage change = [(624 - 99) / 99] x 100
Subtract the new number by the original number
624 - 99 = 525
525 ÷ 99 = 5.303030303030303
5.303030303030303 x 100 = 530.3%