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Review of Python basics.

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In this video, we will learn how to define and use functions in Python.

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Take user input and perform calculations.

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Imagine you are out shopping, and you see a sign that says,

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20% off on all items.

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You find a product you like, but now you need to calculate the final price after applying the discount.

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This Python program helps you do just that.

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Defining the function.

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First, we create a function called Calculate Discounted Price.

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This function takes two inputs.

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The original price of the item, before discount, and the discount percentage being offered.

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Inside the function, we calculate the discount amount by multiplying the original price by discount percentage, divided by 100.

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Now calculate final price by subtracting the discount amount from the original price.

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The function returns the final discounted value.

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Taking user input.

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Now, the program asks the user to enter two values.

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The original price of the item, and the discount percentage they want to apply.

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These values are collected using the input function, which takes user input as a string.

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Since we are dealing with numbers, we convert these inputs to float.

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So, the program can perform calculations correctly.

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Calling the function.

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Once the user inputs the values, the program calls the function calculate discounted price, and passes the entered values.

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The function then returns the final price, which is printed on the screen, displaying the result.

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If user enters, original price 500, and discount percentage 20.

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The program will calculate, and final price is formatted and printed with a dollar sign.

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That is, final price after discount is $400.0.

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This simple program helps users quickly determine the final price after applying a discount, making shopping calculations easier.