71.18% is the change from 399 to 683
Calculation steps:
[( 683 - 399 ) ÷ 399] x 100 = 71.18%
Formula
Percentage change = [(683 - 399) / 399] x 100
Subtract the new number by the original number
683 - 399 = 284
284 ÷ 399 = 0.7117794486215538
0.7117794486215538 x 100 = 71.18%