121.13% is the change from 388 to 858
Calculation steps:
[( 858 - 388 ) ÷ 388] x 100 = 121.13%
Formula
Percentage change = [(858 - 388) / 388] x 100
Subtract the new number by the original number
858 - 388 = 470
470 ÷ 388 = 1.211340206185567
1.211340206185567 x 100 = 121.13%