72.18% is the change from 399 to 687
Calculation steps:
[( 687 - 399 ) ÷ 399] x 100 = 72.18%
Formula
Percentage change = [(687 - 399) / 399] x 100
Subtract the new number by the original number
687 - 399 = 288
288 ÷ 399 = 0.7218045112781954
0.7218045112781954 x 100 = 72.18%