Article: Because percentages all represent fractions with the common denominator of 100, you can add a list of percentages without any additional work. By contrast, remember that to add fractions, you must work through the steps of finding common denominators and converting your fractions to those common denominators. With percentages, however, no additional work is necessary.Just add the numbers together. Again, because percentages represent fractions with the common denominator of 100, you do not need to do any additional work to subtract percentages. If you are working the the concept of removing some percentage from an original whole item, you should represent the whole item with the number 100 (because the whole means 100%). If you have a problem that is initially written as 25% x 30, just write the 25% as its decimal equivalent 0.25 and conduct the operation. This would be 0.25 x 30 which gives the result of 7.5. Similarly, if you have a division problem of 200 ÷ 10%, rewrite this as 200 ÷ 0.10 and enter this into your calculator. You will get the result of 2000. The last result may appear surprising, if you expect division to produce a smaller result than the starting number. However, you should understand that division by a number less than one will always lead to an increase by the reciprocal of that number. For example, dividing by 1/10 is the same as multiplying by 10. Dividing by 1/2 is the same as multiplying by 2.
Question: What is a summary of what this article is about?
Add percentages very directly. Subtract percentages in the same manner. Multiply or divide using decimal equivalents.

Problem: Article: You will want to choose a location for your training session that has enough room and seating for everyone attending.  Your choice will largely depend on how many people you have attending your training session.  As soon as you find a great space, you will want to reserve it for the date of your training session.  Make sure you have enough tables and seating for everyone attending. Leave enough room for any presentation material or equipment. Consider the cost of the space and the resources you have available. An important part of creating a good presentation is having clear goals for it.  Find some key points that you want to make and discover what you want your audience to learn.  Your presentation should cover the following three main goals of a training session:  Make your learning outcomes specific and clear. Try to make your goals measurable.  For example, have your audience learn five new methods for surf board restoration. Make your goals realistic.  Don't try to present too much during your training session.  Focus on what is achievable. Practicing your presentation can help you confidently deliver the material to your audience.  You can also learn how best to pace the presentation or discover sections that need to be added or removed.  You can practice alone in front of a mirror or for a friend. Pay careful attention introduction and conclusion. Include any visual aids in your practice to get a good idea of how long your presentation will take. Chances are you will need to distribute material covering the topics discussed during the training session.  Using hand outs can help your audience understand and retain the information presented.  Handing out printed materials is also a great way for them to bring the material home and refresh what they learned.  Consider including printed out copies of any presentations given. Diagrams and fact sheets can be a great addition to the material handed out. Include business cards and brochures of anyone speaking during your presentation. Some training plans come with material included.
Summary: Choose the best location and time for your training session. Plan your goals for the presentation. Practice your presentation. Prepare material to hand out.

Your topic can be anything you want it to be. If you’re new to writing how-to articles, it’s a good idea to start with a topic you’re comfortable discussing. If you have any special skills or training, or if you’re really good at doing something, that could be a great start for your first how-to!  For instance, if you’re really crafty, you might write an article like “How to Turn Bottle Caps into a Picture Frame” or "How to Store Your Yarn." If you work from home, you might write an article like “How to Manage Your Time Working From Home” or "How to find a Work-From-Home Job." If you're musical, you might decide to write something like "How to Write a Song" or "How to Learn to Play the Piano in 2 Weeks." The title should clearly tell the reader what your article will tell them how to do. An easy-to-digest title will give your article an instant advantage over one with a wordy or confusing title. Also, your title should have good grammar and shouldn’t contain any spelling errors.  Picking your title at the beginning of the writing process can help to keep your article on topic. For instance, “How to Play Guitar Like Hendrix” is a better title than “How to Play the Electric Guitar Like Rock Star and 27 Club Member Jimi Hendrix.” Also, a title like "How to Change the Oil in a Honda Civic" will give the reader a clear idea of what to expect, whereas a title like "Car Maintenance" is too vague. If your article details a particularly long or complex process, it can help to break your steps into sections. Each section should then contain the steps for a distinct part of the procedure. An article on farming corn, for instance, might have separate parts for the sowing process, caring for the corn as it grows, and harvesting the corn. Sometimes, you might need to include different methods for accomplishing the same task. This might be because different techniques can be used to reach the same goal, or perhaps there are slightly different versions of the method to get a different result. Either way, make sure each method explains a specific way the process can be done. If you’re writing an article on cooking lobster, for example, you can have a method on boiling the lobster and a method on grilling the lobster. How-to articles can be short or long, funny or serious, specific or general, technical or casual—there’s no hard and fast rule. To decide on the tone of your article, try to pinpoint whether your reader is someone who’s dealing with a serious issue, trying to learn something, or just looking for fun articles to read. You can also consider the general age of your reader to ensure you don’t write over their head.  For instance, an article on How to Make Paper Spitballs is probably going to be read by bored kids looking for a laugh. A lengthy section on the effects of air resistance on projectile motion could bore your audience to tears. Instead, keep the article short and lighthearted. On the other hand, an article on How to Solve Differential Equations shouldn’t have much in the way of jokes. People who read this article are likely trying to educate themselves or complete a homework assignment. The tone should be academic and professional. If you’re writing an article like How to Be Strong After a Breakup, try to keep your tone compassionate and understanding, and give the reader heartfelt advice on how to move on after the end of a relationship. Even if you’re an expert on a subject, it can help to supplement your article with reliable sources. Look for articles written by experts in the field and published on reputable websites, like medical journals, authoritative blogs, and government websites. Also, try to avoid using sources that just compile information from other places, like Wikipedia.  If you use sources to help you write your article, always rewrite the information in your own words. Copying from a source word-for-word is called plagiarism, which you should avoid at all costs. At the very least, your article will seem less authoritative, but at the most, you could get in trouble for copyright infringement. Avoid using sites that exist to promote a product or a service, as that’s considered content marketing. If the site has a shopping cart or a “Shop” tab under the main menu, it’s usually a good sign the source is content marketing. Check out the wikiHow guide on how to reference sources here: https://www.wikihow.com/Reference-Sources-on-wikiHow. Once you’ve decided on the format of your article and you’ve started gathering information from your sources, start to fill out a rough outline for your article. Put every step of the process on its own line, then include any relevant information you’ll need to know for each step. This can help you avoid missing any steps in your article, but it can also streamline the writing process, since you’ll just have to fill in the outline when you’re finished.
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Choose a subject you know a lot about. Choose a clear, succinct title. Use multiple parts to describe a complicated topic. Describe different methods if there are multiple ways to do something. Tailor the content and tone to the intended audience. Research the subject using reliable sources. Write an outline to help keep yourself organized.