3573.33% is the change from 15 to 551
Calculation steps:
[( 551 - 15 ) ÷ 15] x 100 = 3573.33%
Formula
Percentage change = [(551 - 15) / 15] x 100
Subtract the new number by the original number
551 - 15 = 536
536 ÷ 15 = 35.733333333333334
35.733333333333334 x 100 = 3573.33%