| A | B |
|---|
| discount | the amount of money taken off the original price |
| markdown | a kind of percent decrease, typically used in retail to calculate the discount or sale on an item |
| markup | a kind of percent increase, typically used in retail to calculate the selling price of an item |
| percent | a ratio that compares a part to the whole using 100 |
| percent decrease | a description of how much a quantity decrease in comparison to the original amount |
| percent increase | the description of how much a quantity increases in comparison to the original amount |
| commission | the amount of money a salesperson earns after selling a product, typically less than the item's selling price |
| principal | the original amount of money borrowed or invested |
| proportion | an equation that states two ratios are equivalent |
| proportional relationship | a relationship between two quantities in which the rate of change is constant |
| ratio | a comparison of two quantities by division |
| sales tax | tax charged on the sale of an item or service, is a percent of the purchase price that is collected by the seller |
| selling price | the price of an item after adding the markup/tax or subtracting the markdown/discount |
| simple interest | a fixed percent earned on money you deposit (invest) or pay back when you borrow money (loan), I=prt |
| tip (gratuity) | the amount of money given to a person for a service, for example, a waitress, waiter, hairdresser |
