65.08% is the change from 398 to 657
Calculation steps:
[( 657 - 398 ) ÷ 398] x 100 = 65.08%
Formula
Percentage change = [(657 - 398) / 398] x 100
Subtract the new number by the original number
657 - 398 = 259
259 ÷ 398 = 0.6507537688442211
0.6507537688442211 x 100 = 65.08%