What is the formula for finding this percentage?

Question

I know this is basic, but how do you determine what percentage one number is of another. For example, 20 is what percent of 46?

Thanks

Answer 1

Listen to the first answer.  The second answer is nonsense.  .20 x 46 is 9.2, which does not mean anything.

A quick way to do it is to divide the amount of points you got (20) by the total amount of points on the test (46).  If you got over 100%, say you got a bonus question and your score was 48/46=1.04=104%

So 20/46=0.43 and .43=43%

Answer 2

okay do 20/100 = x/46 and then cross multiply and solve for X  

Answer 3

20/46 x 100 = 43.5 (3sf)

Answer 4

All you need to do is

0.20 x 46

Just move the decimal of the percent two places to the left each time and multiply it. That's what I always do.

PS Cross Multiplying is good for checking, but I hate using it daily because it takes up so much space/time.