593.33% is the change from 15 to 104
Calculation steps:
[( 104 - 15 ) ÷ 15] x 100 = 593.33%
Formula
Percentage change = [(104 - 15) / 15] x 100
Subtract the new number by the original number
104 - 15 = 89
89 ÷ 15 = 5.933333333333334
5.933333333333334 x 100 = 593.33%