Question

Assignment Description

This assignment focuses on programming basics; expressions, variables, constants, methods, selection and loops.

Danny runs an ice cream shop in the inner suburbs of Melbourne. Due to the growing number of customers, Danny has decided to take on extra casual employees. In order to manage payroll for his employees, Danny has decided to develop an employee payroll management system. Details of each employee to be maintained in the system will include; employee id, name, gender (M or F), phone number, hours worked, pay per hour, gross pay, net pay, and income tax payable.

The gross pay is calculated as the number of hours worked multiplied by pay per hour, while the net pay is calculated as the difference between gross pay and income tax payable of which income tax payable is calculated by multiplying gross pay by an income tax rate of 30%. Any hours over forty (40) is paid as an overtime hour at the rate of (2.5) times the base hourly rate.

For example, an employee who has worked a total of 45 hours with an hourly rate of $20 will have;

Regular pay=40*$20=$800

Overtime pay=5 * $20 * 2.5 = $250

Gross pay=$800 + $250 = $1,050

Income tax payable=$1050 * 30%=$315

Net pay=$1050-$315=$735

Task Requirements

Imagine you have been hired to develop this system. Familiarise yourself with the problem description and write a python program named payroll.py with the following functions:

1. Create a main () as a driver function in your payroll progam. Within the main (), you will declare all the required variables, and invoke the other methods described in the next step as required for calculations and displaying the program output.

2. Create additional functions in your payroll program for calculations as follows:
   1. Function to calculate the overtime hours
   2. Function to calculate the gross pay
   3. Function to calculate the income tax payable and
   4. Function to calculate the net pay

These functions needs to be invoked in correct order within your driver function main (), so that when your program executes, it should be able to produce an output as an employee’s pay slip like the example below.

Submission requirements:

1. Your assignment should include the following in the .ZIP archive:

• A Word report with sections containing:
  1. An overview of the problem description of the assignment
  2. Pseudocode as an algorithm for the program
  3. Screen shot/capture of the program output
  4. Statement of completion
  5. Acknowledgment of any help taken for assignment completion    
• Python file (payroll.py) that can be executed by your tutor

2. Instructions for archiving and submitting your files:

• Create a folder and name it with your student ID (MITnnnnnn, where nnnnnn are digits of your student number)
  • Copy your Word document and the python (payroll.py) files into that folder.
  • Zip the folder.
    1. Right-click on the folder
    2. In the pop-up menu select Send-to, Compressed (zipped)Folder
• Then submit this zipped folder in Moodle submission link

Marking criteria:

Program Demonstration: Students must demonstrate their program in week8 (lab time) to the tutor, and are expected to explain their implementation. Marks will be deducted (50% -maximum) for failing to do demonstration or poor explanation.

Description of criteria	Marks
Assignment report
Overview	0.5
Pseudocode	1
Statement of completion and acknowledgement	1
Python implementation
Comments describing the program, methods, author and date	1.5
Design of main function is correctly implemented	4
Design of overtime function is correctly implemented	2
Design gross pay function is correctly implemented	2
Design of income tax payable function is correctly implemented	2
Design of net pay function is correctly implemented	2
Program runs and prints the correct output	4
Total	20

Answer 1

Thanks for the question.

Here is the completed code for this problem. Comments are included so that you understand whats going on. Let me know if you have any doubts or if you need anything to change.

Thank You !!

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#Function to calculate the overtime hours
def calculate_overtime(hrs):
    if hrs <=40:
        return 0
    else:
        return hrs-40

#Function to calculate the gross pay
def calculate_grosspay(hrs,rate):
    overtime=calculate_overtime(hrs)
    return (hrs-overtime)*rate + overtime*rate*2.5

#Function to calculate the income tax payable
def calculate_incometax(grosspay):
    return grosspay*0.30


#Function to calculate the net pay
def calculate_netpay(hrs,rate):
    gross_pay=calculate_grosspay(hrs,rate)
    i_tax=calculate_incometax(gross_pay)
    return gross_pay-i_tax

# get employee details
def input_employee():
    name= input('Enter employee name: ')
    employee_id=input('Enter employee id: ')
    gender =input('Enter gender (M or F): ')
    phone_number=input('Enter phone number: ')
    hours_worked = int(input('Enter hours worked: '))
    pay_per_hour=float(input('Enter pay per hour: $'))
    return name,employee_id,gender,phone_number,hours_worked,pay_per_hour

# print details of employee
def display(record):
    print('Employee Name : {}'.format(record[0]))
    print('Employee ID   : {}'.format(record[1]))
    print('Gender        : {}'.format(record[2]))
    print('Phone Number  : {}'.format(record[3]))
    print('Hours Worked  : {}'.format(record[4]))
    print('Pay Per Hour  : {}'.format(record[5]))
    print('Gross Pay     : ${0:.2f}'.format(record[6]))
    print('Income Tax    : ${0:.2f}'.format(record[8]))
    print('Net Pay       : ${0:.2f}'.format(record[7]))

# main()
def main():
    print('Dannys Payroll Management System')
    records=[]
    while True:
        name, id, gender, ph_num, hrs, rate=input_employee()
        gross_pay=calculate_grosspay(hrs,rate)
        net_pay=calculate_netpay(hrs,rate)
        income_tax= calculate_incometax(gross_pay)
        record=[name, id, gender, ph_num, hrs, rate,gross_pay,net_pay,income_tax]
        records.append(record)
        display(record)
        print('Record saved successfully')
        add_another=input('Do you want to add another (Y or N): ')
        if add_another=='n' or add_another=='N':
            break
    print('Thanks for using the Payroll Management System. Bye.')

main()
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