2680% is the change from 15 to 417
Calculation steps:
[( 417 - 15 ) ÷ 15] x 100 = 2680%
Formula
Percentage change = [(417 - 15) / 15] x 100
Subtract the new number by the original number
417 - 15 = 402
402 ÷ 15 = 26.8
26.8 x 100 = 2680%
Example