1 is 0.25% of 405
Calculation steps:
( 1 ÷ 405 ) x 100 = 0.25%
Formula
(1 ÷ 405) x 100 = 0.25%
1 ÷ 405 = 0.0024691358024691358
Decimal to percent
0.0024691358024691358 x 100 = 0.25%
Example