57.73% is the change from 343 to 541
Calculation steps:
[( 541 - 343 ) ÷ 343] x 100 = 57.73%
Formula
Percentage change = [(541 - 343) / 343] x 100
Subtract the new number by the original number
541 - 343 = 198
198 ÷ 343 = 0.577259475218659
0.577259475218659 x 100 = 57.73%