16.86% is the change from 344 to 402
Calculation steps:
[( 402 - 344 ) ÷ 344] x 100 = 16.86%
Formula
Percentage change = [(402 - 344) / 344] x 100
Subtract the new number by the original number
402 - 344 = 58
58 ÷ 344 = 0.1686046511627907
0.1686046511627907 x 100 = 16.86%