4655.56% is the change from 9 to 428
Calculation steps:
[( 428 - 9 ) ÷ 9] x 100 = 4655.56%
Formula
Percentage change = [(428 - 9) / 9] x 100
Subtract the new number by the original number
428 - 9 = 419
419 ÷ 9 = 46.55555555555556
46.55555555555556 x 100 = 4655.56%