35.71% is the change from 294 to 399
Calculation steps:
[( 399 - 294 ) ÷ 294] x 100 = 35.71%
Formula
Percentage change = [(399 - 294) / 294] x 100
Subtract the new number by the original number
399 - 294 = 105
105 ÷ 294 = 0.35714285714285715
0.35714285714285715 x 100 = 35.71%