3300% is the change from 24 to 816
Calculation steps:
[( 816 - 24 ) ÷ 24] x 100 = 3300%
Formula
Percentage change = [(816 - 24) / 24] x 100
Subtract the new number by the original number
816 - 24 = 792
792 ÷ 24 = 33
33 x 100 = 3300%
Example