21.61% is the change from 398 to 484
Calculation steps:
[( 484 - 398 ) ÷ 398] x 100 = 21.61%
Formula
Percentage change = [(484 - 398) / 398] x 100
Subtract the new number by the original number
484 - 398 = 86
86 ÷ 398 = 0.21608040201005024
0.21608040201005024 x 100 = 21.61%