Question 910976
Three things you need to remember to do this .
1) You want to know 24% of x=240
2)percent of (% of) means multiply by the decimal or fraction equivalent of percent 
24%  (24 out of a hundred)=.24 (24 hundredths) or 24/100
3) per cent means out of one hundred  which is where we get the name of the penny one cent since it is one per (cent)  of one hundred.
24x/100=480
 can also be written 
.24x=480
Some people like to get rid of decimals and fractions right away.
multiply both sides by 100
24x=480 00 by adding two zeroes 
divide by 24
x=20 00
x=2,000
24 % of 2000  quarts is 480 quarts

This seems reasonable since 24 per cent is almost 25 % 
One quarter is 1/4 
which would be 1/4 of 2000= 500