4550% is the change from 12 to 558
Calculation steps:
[( 558 - 12 ) ÷ 12] x 100 = 4550%
Formula
Percentage change = [(558 - 12) / 12] x 100
Subtract the new number by the original number
558 - 12 = 546
546 ÷ 12 = 45.5
45.5 x 100 = 4550%
Example