18 is 3.45% of 521
Calculation steps:
( 18 ÷ 521 ) x 100 = 3.45%
Formula
(18 ÷ 521) x 100 = 3.45%
18 ÷ 521 = 0.0345489443378119
Decimal to percent
0.0345489443378119 x 100 = 3.45%
Example