1% is the change from 401 to 405
Calculation steps:
[( 405 - 401 ) ÷ 401] x 100 = 1%
Formula
Percentage change = [(405 - 401) / 401] x 100
Subtract the new number by the original number
405 - 401 = 4
4 ÷ 401 = 0.00997506234413965
0.00997506234413965 x 100 = 1%