1290% is the change from 30 to 417
Calculation steps:
[( 417 - 30 ) ÷ 30] x 100 = 1290%
Formula
Percentage change = [(417 - 30) / 30] x 100
Subtract the new number by the original number
417 - 30 = 387
387 ÷ 30 = 12.9
12.9 x 100 = 1290%
Example