Ms. Garcia Math
Percent
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A percent is a ratio comparing a number to 100
Is a rate per 100 (e.g., 50% of a quantity means 50/100 times the quantity)
Part
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A portion of a whole.
Whole
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The "whole" is the total number of whatever you are dealing with.
Percent Wheel
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Percent = Part/Whole, Whole = Part/Percent, Part = Percent x Whole
Percent Change
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The amount (stated as a percent) that a number increases or decreases
Percent Increase
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A percent change describing an increase in a quantity
Percent Decrease
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A percent change describing a decrease in a quantity
Tax
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The amount added to the total and given to the government
Tip
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The amount added to the total given to the waiter
Mark-up
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The amount added to the total for the store
Discount
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A percentage deducted from the normal selling price of something