2112.5% is the change from 24 to 531
Calculation steps:
[( 531 - 24 ) ÷ 24] x 100 = 2112.5%
Formula
Percentage change = [(531 - 24) / 24] x 100
Subtract the new number by the original number
531 - 24 = 507
507 ÷ 24 = 21.125
21.125 x 100 = 2112.5%
Example