1393.33% is the change from 30 to 448
Calculation steps:
[( 448 - 30 ) ÷ 30] x 100 = 1393.33%
Formula
Percentage change = [(448 - 30) / 30] x 100
Subtract the new number by the original number
448 - 30 = 418
418 ÷ 30 = 13.933333333333334
13.933333333333334 x 100 = 1393.33%