1483.33% is the change from 30 to 475
Calculation steps:
[( 475 - 30 ) ÷ 30] x 100 = 1483.33%
Formula
Percentage change = [(475 - 30) / 30] x 100
Subtract the new number by the original number
475 - 30 = 445
445 ÷ 30 = 14.833333333333334
14.833333333333334 x 100 = 1483.33%