452.07% is the change from 121 to 668
Calculation steps:
[( 668 - 121 ) ÷ 121] x 100 = 452.07%
Formula
Percentage change = [(668 - 121) / 121] x 100
Subtract the new number by the original number
668 - 121 = 547
547 ÷ 121 = 4.520661157024794
4.520661157024794 x 100 = 452.07%