2687.5% is the change from 24 to 669
Calculation steps:
[( 669 - 24 ) ÷ 24] x 100 = 2687.5%
Formula
Percentage change = [(669 - 24) / 24] x 100
Subtract the new number by the original number
669 - 24 = 645
645 ÷ 24 = 26.875
26.875 x 100 = 2687.5%
Example