what is the percentage of 4 over 40 i dont know it plz help

To find the percentage of 4 out of 40 just divide 4 by 40, multiply the quotient by 100, and put a percent sigh behind your final answer, like so:

(4 / 40) * 100 = 10%

0.1

4/40-->1/10-->10/100-->0.1-->10%

10%

lol if you think both of these answers are wrong, input 4/40% into the calculator, it will give you the answer