1616.67% is the change from 30 to 515
Calculation steps:
[( 515 - 30 ) ÷ 30] x 100 = 1616.67%
Formula
Percentage change = [(515 - 30) / 30] x 100
Subtract the new number by the original number
515 - 30 = 485
485 ÷ 30 = 16.166666666666668
16.166666666666668 x 100 = 1616.67%