86.72% is the change from 399 to 745
Calculation steps:
[( 745 - 399 ) ÷ 399] x 100 = 86.72%
Formula
Percentage change = [(745 - 399) / 399] x 100
Subtract the new number by the original number
745 - 399 = 346
346 ÷ 399 = 0.8671679197994987
0.8671679197994987 x 100 = 86.72%