101.51% is the change from 398 to 802
Calculation steps:
[( 802 - 398 ) ÷ 398] x 100 = 101.51%
Formula
Percentage change = [(802 - 398) / 398] x 100
Subtract the new number by the original number
802 - 398 = 404
404 ÷ 398 = 1.015075376884422
1.015075376884422 x 100 = 101.51%