GRADE 10 BUSINESS STUDIES

GRADE 10

BUSINESS STUDIES

UNIT 6

BUSINESS CALCULATIONS

COURSE BOOK 6

Name:

Address:

District/:

Province

__________________________________

__________________________________

__________________________________

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FLEXIBLE OPEN AND DISTANCE EDUCATION

PRIVATE MAIL BAG WAIGANI NCD

PAPUA NEW GUINEA

2017

GR 10BS U6

WRITERS & EDITORS

Writer: Doris Payok

Gana Wilson

Content Editor: Silas Umaropi

Department Editors: Lucy Joseph

Ursula Yallon

Sub-editors: Mohoto Pinoh Malt

Jeff Wama

GR 10 BS U6

1

TITLE PAGE

GRADE 10

BUSINESS STUDIES

UNIT 6

BUSINESS CALCULATIONS

In this unit, you will learn about;

TOPIC 1: CALCULATING SELLING PRICE, PROFIT,

INTERESTS AND DISCOUNTS

TOPIC 2: CALCULATING WAGES, DEPRECIATION,

INSURANCE AND INFLATION

TOPIC 3: CALCULATING PROFIT DISTRIBUTION IN

PARTNERSHIP AND DIVIDENDS IN COMPANIES

TOPIC 4: CALCULATING CURRENCY CONVERSIONS,

INCOME TAX AND RETIREMENT BENEFITS

GR 10 BS U6

2

ACKNOWLEDGEMENTS & ISBN

Acknowledgements

We acknowledge the contributions of all Primary Teachers who in one way or

another helped to develop this course.

Our profound gratitude goes to the former Principal, Mr Demas Tongogo for

leading FODE team towards this great achievement. Special thanks to the staff

of MAL and Business Studies Department of FODE who played an active role in

coordinating writing workshops, outsourcing lesson writing and editing

processes.

We also acknowledge the professional guidance provided by Curriculum and

Development Assessment Division throughout the processes of writing and, the

services given by member of the Primary Section and Academic Committees.

The Course Book was developed with the support and funding of the GO- PNG

FODE World Bank Project.

DIANA TEIT AKIS

PRINCIPAL

Written by: Doris Payok and Gana Wilson

Published in 2017 by the Flexible, Open and Distance Education

? Copyright 2017, Department of Education, Papua New Guinea

All rights reserved. No part of this publication may be reproduced, stored in a

retrieval system, or transmitted in any form or by any means electronic, mechanical,

photocopying, recording or otherwise without prior permission of the publisher.

Printed by the Flexible, Open and Distance Education

ISBN: 978-9980-89-361-1

National Library Services of Papua New Guinea

GR 10 BS U6

3

CONTENTS

TABLE OF CONTENT

Title Page¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

1

Acknowledgment¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

2

Table of content ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

3

Secretary¡¯s message ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..

5

Unit Introduction¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

6

Study Guide ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­. 7

Calculating selling price, profit, interests and discounts¡­¡­

Topic 1:

Topic Introduction¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

9

10

Lesson 1: Calculating selling price ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­. 11

Lesson 2: Calculating profit ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

23

Lesson 3: Calculating interests ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..

37

Lesson 4:

Calculating Discounts ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..

47

Answers to Practice Exercises1- 4¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

53

Calculating wages, depreciation and insurance ¡­¡­¡­¡­¡­.

59

Topic Introduction¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

60

Lesson 5: Calculating wages ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..

61

Lesson 6:

Calculating depreciation ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..........

67

Lesson 7: Calculating insurance, premium and compensation ¡­¡­¡­¡­

75

Topic 2:

Answers to Practice Exercises 5-7

85

Topic 3:

Calculating profit distribution in partnership and

dividends in companies¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­

91

Topic Introduction¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

92

Lesson 8: Calculating profit distribution in a partnership¡­¡­¡­¡­¡­¡­¡­

Lesson 9: Calculating dividends and stock value¡­¡­¡­¡­¡­¡­¡­¡­¡­.....

93

99

Answers to Practice Exercises 8-9 ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­..

Topic 4:

109

Calculating currency conversions, income tax and

retirement benefits ..................................................................... 113

Topic Introduction¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

114

Lesson 10:

Calculating buying and selling of international

currencies¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

115

Lesson 11:

Calculating Income tax ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­...

121

Lesson 12:

Calculating Retirement benefits funds contributions and

payout¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­...

129

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