1260% is the change from 30 to 408
Calculation steps:
[( 408 - 30 ) ÷ 30] x 100 = 1260%
Formula
Percentage change = [(408 - 30) / 30] x 100
Subtract the new number by the original number
408 - 30 = 378
378 ÷ 30 = 12.6
12.6 x 100 = 1260%
Example