1590% is the change from 30 to 507
Calculation steps:
[( 507 - 30 ) ÷ 30] x 100 = 1590%
Formula
Percentage change = [(507 - 30) / 30] x 100
Subtract the new number by the original number
507 - 30 = 477
477 ÷ 30 = 15.9
15.9 x 100 = 1590%
Example