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This video gives the formula for calculating compound interest and then demonstrates how to calculate the future amount after a given number of years.
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Shows how to organize the information given in words using a chart. This allows you to use the percent formula to show how the columns are combined to then find an equation to solve for the answer,
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This video shows how to compute the percentage of a price increase. A price decrease is worked the same way and the percentage is taken of the first and higher price.
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Explains the pitfalls that you need to know about to correctly do this problem. It is not as easy as it seems at first glance, so pay close attention to this video.
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Uses the technique of adding the percentages fiirst before multiplying so that the answer is immediate.
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Just finding the amount of increase or decrease in these types of percent problems.
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Using the proportion %/100 = Amount/Base to plug in what's given to find what is asked for.
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Just some tricks to break down a percentage if your phone battery goes dead and you don't have a calculator.
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Multiplying the decimal version of a percent by a number to find that percentage amount.
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Fraction conversions that are simpler than they look.
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Conversions using money as a way to think them through.
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Quick look at how to work it both ways
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