72.93% is the change from 399 to 690
Calculation steps:
[( 690 - 399 ) ÷ 399] x 100 = 72.93%
Formula
Percentage change = [(690 - 399) / 399] x 100
Subtract the new number by the original number
690 - 399 = 291
291 ÷ 399 = 0.7293233082706767
0.7293233082706767 x 100 = 72.93%