168.13% is the change from 320 to 858
Calculation steps:
[( 858 - 320 ) ÷ 320] x 100 = 168.13%
Formula
Percentage change = [(858 - 320) / 320] x 100
Subtract the new number by the original number
858 - 320 = 538
538 ÷ 320 = 1.68125
1.68125 x 100 = 168.13%