21 is 5.38% of 390
Calculation steps:
( 21 ÷ 390 ) x 100 = 5.38%
Formula
(21 ÷ 390) x 100 = 5.38%
21 ÷ 390 = 0.05384615384615385
Decimal to percent
0.05384615384615385 x 100 = 5.38%
Example