Percent of Change
Key Questions
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The percentage change formula is:
#(X_2 / X_1 - 1) * 100# where
#X_1# is the original value and#X_2# is the final value.Example:
If Google's stock price increases from $500 to $575, it has increased by 15%.
#(575 / 500 - 1) * 100 = 15%# -
Answer:
See the process below:
Explanation:
The formula for calculating the percent change in a value between two points in time is:
#p% = (N - O)/O * 100# Where:
#p# is the percent change#N# is the New Value.#O# is the Old ValueTake the old and new values you are given in the problem, substitute them for
#O# and#N# and calculate the percent change -
The formula for calculating the percent change in a value between two points in time is:
#p = (N - O)/O * 100# Where:
#p# is the percent change#N# is the New Value#O# is the Old Value -
If
#x# is some changing quantity, and#Delta x# be the change in#x# -value, then the percentage change can be found by#{Delta x}/x times 100#
Example
What is the percentage change (discount) of $12 discount on $300 item?
#{12}/{300} times 100=4%# discount
I hope that this was helpful.
Questions
Linear Equations
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One-Step Equations and Inverse Operations
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Applications of One-Step Equations
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Two-Step Equations and Properties of Equality
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Multi-Step Equations with Like Terms
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Distributive Property for Multi-Step Equations
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Equations with Variables on Both Sides
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Equations with Ratios and Proportions
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Scale and Indirect Measurement Applications
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Conversion of Decimals, Fractions, and Percent
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Percent Equations
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Percent of Change
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Formulas for Problem Solving