Python program to calculate discount based on selling price

Find the discount value using user provided values in python :

In this post, we will learn how to find the discount and amount to pay based on predefined discount percentage. So,

We will be given a set of discount percentage for a range of prices.
We will ask the user to enter the selling price and
We will print the discounted price and discount given for that selling price.

Algorithm :

For this example, we will consider the below discount percentages for the mentioned selling price ranges :

$0 - $100 -> 2%
$100 - $500 -> 5%
$500 - $1000 -> 7%
more than $1000 -> 10%

Python progam :

Below is the complete python program :

def getDiscount(amount):
	if amount <= 0:
		return 0;
	elif amount <= 100:
		return amount*.02;
	elif amount <= 500:
		return amount*.05;
	elif amount <= 1000:
		return amount*.07;
	else:
		return amount*.1;

if __name__=='__main__':
	selling_price = int(input("Enter selling price : "))
	discount = getDiscount(selling_price)

	print("Discount : {}".format(discount))

Explanation :

Here,

getDiscount is a method that takes the selling price as argument and returns the discount.
At the beginning of the program, we are asking the user to enter the selling price. We are taking this input as int and storing the value in the variable selling_price
Next, we are passing the selling_price variable to getDiscount method. It returns the discount price. We are storing that value in discount variable.
Finally, we are printing the discount price calculated for the selling price.

Sample Output :

(base) ➜  programs python3 example.py
Enter selling price : 100
Discount : 20.0
(base) ➜  programs python3 example.py
Enter selling price : 100
Discount : 2.0
(base) ➜  programs python3 example.py
Enter selling price : 500
Discount : 25.0
(base) ➜  programs python3 example.py
Enter selling price : 1000
Discount : 70.0
(base) ➜  programs python3 example.py
Enter selling price : 2000
Discount : 200.0

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