2400% is the change from 24 to 600
Calculation steps:
[( 600 - 24 ) ÷ 24] x 100 = 2400%
Formula
Percentage change = [(600 - 24) / 24] x 100
Subtract the new number by the original number
600 - 24 = 576
576 ÷ 24 = 24
24 x 100 = 2400%
Example