56.69% is the change from 344 to 539
Calculation steps:
[( 539 - 344 ) ÷ 344] x 100 = 56.69%
Formula
Percentage change = [(539 - 344) / 344] x 100
Subtract the new number by the original number
539 - 344 = 195
195 ÷ 344 = 0.5668604651162791
0.5668604651162791 x 100 = 56.69%