20.35% is the change from 398 to 479
Calculation steps:
[( 479 - 398 ) ÷ 398] x 100 = 20.35%
Formula
Percentage change = [(479 - 398) / 398] x 100
Subtract the new number by the original number
479 - 398 = 81
81 ÷ 398 = 0.20351758793969849
0.20351758793969849 x 100 = 20.35%