4260% is the change from 15 to 654
Calculation steps:
[( 654 - 15 ) ÷ 15] x 100 = 4260%
Formula
Percentage change = [(654 - 15) / 15] x 100
Subtract the new number by the original number
654 - 15 = 639
639 ÷ 15 = 42.6
42.6 x 100 = 4260%
Example