310.24% is the change from 166 to 681
Calculation steps:
[( 681 - 166 ) ÷ 166] x 100 = 310.24%
Formula
Percentage change = [(681 - 166) / 166] x 100
Subtract the new number by the original number
681 - 166 = 515
515 ÷ 166 = 3.102409638554217
3.102409638554217 x 100 = 310.24%