5400% is the change from 9 to 495
Calculation steps:
[( 495 - 9 ) ÷ 9] x 100 = 5400%
Formula
Percentage change = [(495 - 9) / 9] x 100
Subtract the new number by the original number
495 - 9 = 486
486 ÷ 9 = 54
54 x 100 = 5400%
Example