1280% is the change from 30 to 414
Calculation steps:
[( 414 - 30 ) ÷ 30] x 100 = 1280%
Formula
Percentage change = [(414 - 30) / 30] x 100
Subtract the new number by the original number
414 - 30 = 384
384 ÷ 30 = 12.8
12.8 x 100 = 1280%
Example