609.09% is the change from 121 to 858
Calculation steps:
[( 858 - 121 ) ÷ 121] x 100 = 609.09%
Formula
Percentage change = [(858 - 121) / 121] x 100
Subtract the new number by the original number
858 - 121 = 737
737 ÷ 121 = 6.090909090909091
6.090909090909091 x 100 = 609.09%