329.55% is the change from 88 to 378
Calculation steps:
[( 378 - 88 ) ÷ 88] x 100 = 329.55%
Formula
Percentage change = [(378 - 88) / 88] x 100
Subtract the new number by the original number
378 - 88 = 290
290 ÷ 88 = 3.2954545454545454
3.2954545454545454 x 100 = 329.55%