14.66% is the change from 348 to 399
Calculation steps:
[( 399 - 348 ) ÷ 348] x 100 = 14.66%
Formula
Percentage change = [(399 - 348) / 348] x 100
Subtract the new number by the original number
399 - 348 = 51
51 ÷ 348 = 0.14655172413793102
0.14655172413793102 x 100 = 14.66%