64.57% is the change from 398 to 655
Calculation steps:
[( 655 - 398 ) ÷ 398] x 100 = 64.57%
Formula
Percentage change = [(655 - 398) / 398] x 100
Subtract the new number by the original number
655 - 398 = 257
257 ÷ 398 = 0.6457286432160804
0.6457286432160804 x 100 = 64.57%