Calculate Electricity Bill using Python

 Calculate Electricity Bill

if unit consumed <= 200 then cost per unit is RS 10
if unit consumed >= 201 and <= 400 then cost per unit is RS 15
if unit consumed >= 401 and <= 500 then cost per unit is RS 18
if unit consumed >= 501 then cost per unit is RS 20
Line rent RS 350 . if total bill more than 3000 then 10% Surcharge

Program Source Code:

unit = int(input("Enter Unit:"))

if unit <= 200:

    bill = unit * 10

elif unit>=201 and unit <= 400:

    bill = unit * 15

elif unit>=401 and unit<=500:

    bill = unit * 18

else:

    bill = unit * 20

print("Bill Per Unit:",bill)

bill = bill + 350

print("Bill Per Unit after add Line Rent:",bill)

if bill>3000:

    bill = bill + (bill*0.1)

print("Your Total Bill :",bill)