83.96% is the change from 399 to 734
Calculation steps:
[( 734 - 399 ) ÷ 399] x 100 = 83.96%
Formula
Percentage change = [(734 - 399) / 399] x 100
Subtract the new number by the original number
734 - 399 = 335
335 ÷ 399 = 0.8395989974937343
0.8395989974937343 x 100 = 83.96%