57.14% is the change from 343 to 539
Calculation steps:
[( 539 - 343 ) ÷ 343] x 100 = 57.14%
Formula
Percentage change = [(539 - 343) / 343] x 100
Subtract the new number by the original number
539 - 343 = 196
196 ÷ 343 = 0.5714285714285714
0.5714285714285714 x 100 = 57.14%