17.39% is the change from 345 to 405
Calculation steps:
[( 405 - 345 ) ÷ 345] x 100 = 17.39%
Formula
Percentage change = [(405 - 345) / 345] x 100
Subtract the new number by the original number
405 - 345 = 60
60 ÷ 345 = 0.17391304347826086
0.17391304347826086 x 100 = 17.39%