3660% is the change from 15 to 564
Calculation steps:
[( 564 - 15 ) ÷ 15] x 100 = 3660%
Formula
Percentage change = [(564 - 15) / 15] x 100
Subtract the new number by the original number
564 - 15 = 549
549 ÷ 15 = 36.6
36.6 x 100 = 3660%
Example