proportional reasoning

6. the percentage increase or decrease of a value from its original value
10. a calculation method where interest is earned solely on the principal amount
11. the fee paid for borrowing money or the return earned on savings and investments
12. a reduction in the regular selling price of a product
13. the amount for which an item is sold
15. measures the discrepancy between an observed value and the true value
16. a percentage of a total cost, typically given as a gratuity for good service
17. multiplying the tax rate by the purchase price

1. the percentage by which a value has grown from its original value
2. the original amount or value from which an increase is calculated
3. the price a retailer or business pays to a supplier or manufacturer for goods when purchasing them in bulk
4. the percentage by which a value has decreased from its original value
5. an initial charge or cost for a service or product
7. a percentage of a total sales amount paid to an employee or agent for their services or sales
8. In mathematics, a discount refers to a reduction in the price of a product or service, often expressed as a percentage of the original price
9. the discrepancy or difference between a measured or estimated value
12. the increase in the price of a product or service from its cost
14. an extra amount of money given voluntarily, usually as a tip or reward for service