53.88% is the change from 399 to 614
Calculation steps:
[( 614 - 399 ) ÷ 399] x 100 = 53.88%
Formula
Percentage change = [(614 - 399) / 399] x 100
Subtract the new number by the original number
614 - 399 = 215
215 ÷ 399 = 0.5388471177944862
0.5388471177944862 x 100 = 53.88%