**Instructions:**

- Enter the item name, original price, and discount percentage.
- Click "Add Item" to add each item to the list.
- Repeat the above steps for multiple items if needed.
- Click "Calculate" to calculate the total savings and average discount percentage.
- Click on an item in the list to see detailed calculation and explanation.
- View your calculation history in the "Calculation History" section.
- Click "Clear Items" to reset the items and calculations.
- Click "Copy Total Savings" to copy the total savings to the clipboard.

Discount Calculator is a tool that helps you calculate the discounted price of a product or service. It is a simple and easy-to-use tool that anyone can use to calculate the discounted price of a product or service.

## Concepts

The Discount Calculator is based on calculating the discounted price of a product or service. The formula for calculating the discounted price is:

```
Discounted Price = Original Price - (Original Price x Discount Rate)
```

Where:

`Original Price`

is the original price of the product or service.`Discount Rate`

is the percentage of the discount.

## Formulae

The formula for calculating the Discounted Price is the most important formula used in the Discount Calculator. However, there are other formulae that are used in the Discount Calculator to calculate the discount rate, original price, and savings.

### Discount Rate Formula

The formula for calculating the Discount Rate is:

```
Discount Rate = (Discount Amount / Original Price) x 100%
```

Where:

`Discount Amount`

is the amount of discount.`Original Price`

is the original price of the product or service.

### Original Price Formula

The formula for calculating the Original Price is:

```
Original Price = Discounted Price / (1 - Discount Rate)
```

Where:

`Discounted Price`

is the discounted price of the product or service.`Discount Rate`

is the percentage of the discount.

### Savings Formula

The formula for calculating the Savings is:

```
Savings = Original Price - Discounted Price
```

Where:

`Original Price`

is the original price of the product or service.`Discounted Price`

is the discounted price of the product or service.

## Benefits

The Discount Calculator has several benefits, including:

### Time-Saving

The Discount Calculator is a time-saving tool that helps you calculate the discounted price of a product or service quickly and easily.

### Accuracy

The Discount Calculator is an accurate tool that helps you calculate the discounted price of a product or service with precision.

### Convenience

The Discount Calculator is a convenient tool that anyone can use to calculate the discounted price of a product or service.

## Interesting Facts

Here are some interesting facts about the Discount Calculator:

- The Discount Calculator was first introduced in the early 2000s.
- Millions of people around the world use the Discount Calculator.
- The Discount Calculator is available for free on many websites.

**References**

Here are some scholarly references that you may find useful:

- Clark, J. (2011). Mathematical Connections: A Study of Effective Calculator Use in Secondary Mathematics Classrooms.
- Elementary and Intermediate Algebra by Lynn Marecek and Mary Anne Anthony-Smith (2014).
- Basic Mathematics for College Students by Margaret L. Lial, Thomas H. Ratliff, Julie Beechner, and Julie O. Neill (2011).