3413.33% is the change from 15 to 527
Calculation steps:
[( 527 - 15 ) ÷ 15] x 100 = 3413.33%
Formula
Percentage change = [(527 - 15) / 15] x 100
Subtract the new number by the original number
527 - 15 = 512
512 ÷ 15 = 34.13333333333333
34.13333333333333 x 100 = 3413.33%