309.52% is the change from 168 to 688
Calculation steps:
[( 688 - 168 ) ÷ 168] x 100 = 309.52%
Formula
Percentage change = [(688 - 168) / 168] x 100
Subtract the new number by the original number
688 - 168 = 520
520 ÷ 168 = 3.0952380952380953
3.0952380952380953 x 100 = 309.52%