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Историческую версию How To Calculate Percentages можно получить на Android
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Knowing how to calculate percentages will help you not only score well on a math test but in the real world as well. They are used for calculating percentage in restaurants, finding out the nutritional content of your food, or even determining statistics of your favorite sports team. Regardless of how you plan to use the knowledge, calculating percentages is fundamental and quite easy method.
Find a percentage or work out the percentage given numbers and percent values. Use percent formulas to figure out percentages and unknowns in equations.
This application explore the method that explains how to calculate percentage.