You are ready for the trick or treat on Halloween night, but have you bought enough candies? Will you be short and have to close early? Or you will be trapped by bags of candies. Do you really want to eat it?

Believe it or not, there is now a complex formula to solve these problems, thanks to people everywhere, popularmechanics.com.

Of course, this formula is a bit complicated and confusing, but if your calculations are correct, you should be able to better evaluate the situation and get some ideas.

So get ready, here is the formula:

T multiplied by K multiplied by G, then added D, multiplied by F, multiplied by S, and then divided by 75. Feeling back in the calculus of 10th grade? Well, you may not be alone.

Now this is what the layman means.

"T" represents the time (in hours) you plan to distribute the candy. "K" means that you think there will be an estimated number of trick-or-treating children per hour. "G" stands for the generosity factor, or actually how many pieces of candy you would give each child. "D" represents the number of days that you have candies in your house before Halloween, which means the candies you actually eat before Halloween. "F" represents the number of family members who may also eat some candy in your home, and finally "S" represents the degree of sneakiness, or the number of candy that you and your family may consume every day before Halloween.

Then divide it all by 75, because this is the average number of interesting-sized candy bars in each bag you buy.

In other words, suppose you plan to distribute candies for 3 hours, multiplied by the approximately 70 children who will stay in your home per hour, multiplied by the three pieces of candy you will give each child, and all this adds up to 630 pieces of candy. Now that Halloween has not arrived, there are still 3 days, and then we multiplied by the 4 members of your family, each of them can steal two pieces of candies per day, which is equivalent to 24 pieces of candies. Now add this number to the first number, (there are 630 in all the bags you bought), and we have the magic number that requires 654 candies. Finally divide this number by 75. It tells us that you need about 9 bags of candies to really overcome all the tricks you expect.

Oh, there is one more thing to consider, and that is bad weather. If rain is forecast, divide the number by 1.5. This reduces the amount of candy you need by approximately one-third. Now, our Sunday forecast looks only partly cloudy, with only 20% chance of showers, so you may not have to add additional steps.

Is this a very complicated formula? The answer is yes, but when you break it down, it will give you the most accurate number of candies. Also based on the calculations we have done, and the retail price of those interesting-sized bags suggested by the manufacturer, your candy bill may be around $90, plus the tax on your Halloween candy supply.