344.32% is the change from 88 to 391
Calculation steps:
[( 391 - 88 ) ÷ 88] x 100 = 344.32%
Formula
Percentage change = [(391 - 88) / 88] x 100
Subtract the new number by the original number
391 - 88 = 303
303 ÷ 88 = 3.4431818181818183
3.4431818181818183 x 100 = 344.32%