3300% is the change from 2 to 68
Calculation steps:
[( 68 - 2 ) ÷ 2] x 100 = 3300%
Formula
Percentage change = [(68 - 2) / 2] x 100
Subtract the new number by the original number
68 - 2 = 66
66 ÷ 2 = 33
33 x 100 = 3300%
Example