21% of 40 equal to 8.4
Calculation steps:
( 21 ÷ 100 ) x 40 = 8.4
Formula
(21 ÷ 100) x 40 = 8.4
Percent to decimal
21% to decimal is 21 ÷ 100 = 0.21
Multiply decimal with the other number
0.21 x 40 = 8.4
Example