10% of 640 equal to 64
Calculation steps:
( 10 ÷ 100 ) x 640 = 64
Formula
(10 ÷ 100) x 640 = 64
Percent to decimal
10% to decimal is 10 ÷ 100 = 0.1
Multiply decimal with the other number
0.1 x 640 = 64
Example