171.25% is the change from 320 to 868
Calculation steps:
[( 868 - 320 ) ÷ 320] x 100 = 171.25%
Formula
Percentage change = [(868 - 320) / 320] x 100
Subtract the new number by the original number
868 - 320 = 548
548 ÷ 320 = 1.7125
1.7125 x 100 = 171.25%