39.07% is the change from 343 to 477
Calculation steps:
[( 477 - 343 ) ÷ 343] x 100 = 39.07%
Formula
Percentage change = [(477 - 343) / 343] x 100
Subtract the new number by the original number
477 - 343 = 134
134 ÷ 343 = 0.39067055393586003
0.39067055393586003 x 100 = 39.07%