DMD   EDU-HOME

WELCOME TO THIS PAGE INTENDED FOR STUDENTS AT THE UNIVERSITY OF THE WESTERN CAPE REGISTERED IN 2010  FOR THE MODULE:

QSF  132

W7 L2

PERCENTAGES

NOTION (DEF)  -------------PROBLEMS

% INCREASE/DECREASE

THE PRINCIPLES or RULES

RULE 1       BASIS OF ARGUMENT : WHICH IS 100% (OLD OR NEW)

WHAT PERCENTAGE DOES THE NEW PRICE REPRESENT?

RULE 2       EXPRESS THE DIFFERENCE AS A PERCENTAGE OF THE

FIRST (OLD) VALUE.

*

 PROBLEM SOLUTION Increase R400 by 7½ % METHOD 1:  = R30                   R400 + R30 = R430 METHOD 2:  = R430 Note that  and Increase R2 by 150% Decrease R650 by 8% = R598 (Use your calculator to simplify)

FOR DISCUSSION:

On p.44 in the course reader we state: "All (that) the business-minded person seems to be interested in, is the accurate answer, in order to make decisions based on that. Time and answers are of the essence

©  DESMOND DESAI, DMD EDU-HOME, 2010

All rights reserved. Designed and created by Desmond Desai, South Africa. This page is protected by Copyright. No part of this page may be reproduced, stored in a retrieval system, or transmitted in any form of by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the copyright holder.