3358.33% is the change from 12 to 415
Calculation steps:
[( 415 - 12 ) ÷ 12] x 100 = 3358.33%
Formula
Percentage change = [(415 - 12) / 12] x 100
Subtract the new number by the original number
415 - 12 = 403
403 ÷ 12 = 33.583333333333336
33.583333333333336 x 100 = 3358.33%