3375% is the change from 12 to 417
Calculation steps:
[( 417 - 12 ) ÷ 12] x 100 = 3375%
Formula
Percentage change = [(417 - 12) / 12] x 100
Subtract the new number by the original number
417 - 12 = 405
405 ÷ 12 = 33.75
33.75 x 100 = 3375%
Example