3312.5% is the change from 24 to 819
Calculation steps:
[( 819 - 24 ) ÷ 24] x 100 = 3312.5%
Formula
Percentage change = [(819 - 24) / 24] x 100
Subtract the new number by the original number
819 - 24 = 795
795 ÷ 24 = 33.125
33.125 x 100 = 3312.5%
Example