1630% is the change from 30 to 519
Calculation steps:
[( 519 - 30 ) ÷ 30] x 100 = 1630%
Formula
Percentage change = [(519 - 30) / 30] x 100
Subtract the new number by the original number
519 - 30 = 489
489 ÷ 30 = 16.3
16.3 x 100 = 1630%
Example