3493.33% is the change from 15 to 539
Calculation steps:
[( 539 - 15 ) ÷ 15] x 100 = 3493.33%
Formula
Percentage change = [(539 - 15) / 15] x 100
Subtract the new number by the original number
539 - 15 = 524
524 ÷ 15 = 34.93333333333333
34.93333333333333 x 100 = 3493.33%