38.48% is the change from 343 to 475
Calculation steps:
[( 475 - 343 ) ÷ 343] x 100 = 38.48%
Formula
Percentage change = [(475 - 343) / 343] x 100
Subtract the new number by the original number
475 - 343 = 132
132 ÷ 343 = 0.3848396501457726
0.3848396501457726 x 100 = 38.48%