| A | B |
| distance | rate x time |
| interest | principal x rate x time |
| interest | money that is paid for the use of money that is borrowed or invested |
| commission | an amount paid to a salesperson, often in addition to a regular salary |
| royalty | an amount paid to the creator or owner of a musical or literary work, an invention, or a service |
| discount | a reduction in the original price of an item or service |
| percentage | rate x base |
| .83 is equivalent to what percent ? | 83% |
| 3.62 is equivalent to what percent ? | 362% |
| 4/5 is equal to what percent ? | 80% |
| 7/20 is equal to what percent ? | 35% |
| 3/8 is equal to what percent ? | 37.5% |
| 5/8 is equal to what percent ? | 62.5% |
| What is 18% of 35 ? | 6.3 |
| What is 24% of 550 ? | 132 |
| What percent of 500 is 35 ? | 7% |
| 15 is 37.5% of what number ? | 40 |
| What is 22% of 350 ? | 77 |
| 1.6 is 8% of what number ? | 20 |
| 52 is what percent of 78 ? | 66 2/3% |