Write a program to EB bill calculator

Electricity Board bill calculator:

An Electricity Bill (EB) Calculator is a tool used to estimate the cost of electricity consumption based on the units consumed and applicable tariff rates.

Formula:
Electricity Cost = Electricity Consumption (kWh) x Tariff Rate per unit.

Example:

# Function to calculate electricity bill based on unit consumption
def eb(unit):
    # First 100 units are free
    if unit <= 100:
        cost = 0.00
    # For 101–200 units, charge ₹2.50 per unit above 100
    elif unit <= 200:
        cost = (unit - 100) * 2.50
    # For 201–300 units, add ₹3.00 per unit above 200
    elif unit <= 300:
        cost = 100 * 2.5 + (unit - 200) * 3.00
    # For 301–400 units, add ₹4.50 per unit above 300
    elif unit <= 400:
        cost = 100 * 2.5 + 100 * 3 + (unit - 300) * 4.50
    # For units above 400, add ₹6.00 per unit above 400
    else:
        cost = 100 * 2.5 + 100 * 3 + 100 * 4.5 + (unit - 400) * 6.00
    # Return the total calculated cost
    return cost

# input the total units consumed
unit = int(input("Enter the unit: "))

# Call the `eb` function to calculate the electricity bill
eb_bill = eb(unit)

# Display the calculated electricity bill amount
print("Electricity bill amount:", eb_bill)

Output:

Enter the unit:345
Electricity bill amount: 752.5