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Subtracting a past population value from the present population value, and dividing this result by the past population value, yields the population-growth rate. Multiplying the population-growth rate by 100 yields the growth percentage.

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To calculate percent sales growth over a period, subtract the previous sales figure from the current sales figure, divide the result by the previous sales figure, and then multiply this number by 100, explains Michael Marz for the Houston Chronicle. In order to obtain the most accurate growth percen

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Calculate population growth rate by dividing the change in population by the initial population, multiplying it by 100, and then dividing it by the number of years over which that change took place. The number is expressed as a percentage.

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When you need to solve a math problem and want to make sure you have the right answer, a calculator can come in handy. Calculators are small computers that can perform a variety of calculations and can solve equations and problems. While there are more complicated calculators available, the simplest

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A simple calculator has division, multiplication, addition and subtraction functions. It also has functions to clear entries from its memory, functions to add or subtract from memory and a recall option.

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According to Investopedia, to calculate an annual growth rate, take the ending value and divide it by the beginning value. Place that amount to the power of one over the number of years of growth, and subtract one from that amount. This averages growth over a period of years.

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A puppy growth calculator measures how big and heavy a puppy is likely to get. This is based on its breed and current size, weight and age.

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The basic equation for calculating population growth multiplies the population size by the per capita growth rate, which is calculated by subtracting the per capita death rate from the per capita birth rate. This simplistic calculation does not factor in the effects of migration or immigration on a

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Some functions of a scientific input calculator include logarithms, trigonometric functions, exponential functions and floating-point arithmetic. An input calculator is a device that can complete simple and complex functions by inputting values and is also sometimes known as an input-output calculat

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Many finance websites, including Investopedia, CalculatorEdge and NCalculators.com, offer compounded annual growth rate calculators for their users. All of these sites require the user to input information essential for calculation of the compound annual growth rate.