3540% is the change from 15 to 546
Calculation steps:
[( 546 - 15 ) ÷ 15] x 100 = 3540%
Formula
Percentage change = [(546 - 15) / 15] x 100
Subtract the new number by the original number
546 - 15 = 531
531 ÷ 15 = 35.4
35.4 x 100 = 3540%
Example