| A | B |
|---|
| commission | An income based on percentage of sales, separate from fixed salary. |
| cross products | When the numerator of one fraction is multiplied by the denominator of another. |
| discount | The amount by which the original price is reduced. |
| markup | The difference between the price to the customer and the cost to the seller. |
| percent | The ratio of a number to 100; percent means "per hundred": 25%=25 per 100 or 25/100. |
| percent of change | The difference of two numbers divided by the smaller to find increase, or divided by the larger to find decrease. |
| profit | The amount pocketed by the seller. |
| proportion | An equation which states that two ratios are equivalent: 5/10=1/2. |
| rate | A ratio that compares quantities of different units, such as miles per hour, price per pound: $3.25 per pound. |
| ratio | A comparison of two numbers or quantities: 3 to 5 or 3:5 or 3/5. |
| scale | The ratio of the sclaed size of an object to the actual size of the object: 1cm:2m, meaning one centimeter scaled to represent 2 meters. |
| scale drawing | A drawing that has its dimensions related by a scale factor to the dimensions of the object it represents: scale is 1in:3ft. |
| similar figures | Figures that have the same shape but may not have the same size. |
| similarity | When common features exist between two objects. |
| unit rate | A rate in which the second term is 1: $2/1gram. |
