73.59% is the change from 390 to 677
Calculation steps:
[( 677 - 390 ) ÷ 390] x 100 = 73.59%
Formula
Percentage change = [(677 - 390) / 390] x 100
Subtract the new number by the original number
677 - 390 = 287
287 ÷ 390 = 0.735897435897436
0.735897435897436 x 100 = 73.59%