1493.33% is the change from 30 to 478
Calculation steps:
[( 478 - 30 ) ÷ 30] x 100 = 1493.33%
Formula
Percentage change = [(478 - 30) / 30] x 100
Subtract the new number by the original number
478 - 30 = 448
448 ÷ 30 = 14.933333333333334
14.933333333333334 x 100 = 1493.33%