Your SlideShare is downloading. ×
Power point percentages
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Power point percentages

1,315
views

Published on


0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
1,315
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
49
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. PercentageApplications
    GeneralitiesaboutPercentage
  • 2. What does percentage mean?
    In mathematics, a percentage is a way of expressing a number as a fraction of 100 (per cent meaning "per hundred". It is often denoted using the percent sign, "%". For example, 45%) read as "forty five percent" is equal to 45 / 100, or 0.45.
  • 3. Why are percentages necessary?
    It allows us to better visualize how much of a whole is being represented also is important for other things such as finance and interest rates.
    Shops advertise discounts on products.  These discounts are percentages."Up to 50% off marked prices“
    Financial institutions quote interest charged to the client on loans, or interest paid for money invested, as a percentage.
    "Housing Loans-4.95% p.a. for the first 12 months"Interest paid may be as Simple Interest or Compound Interest.
    Companies describe their success or failure as an increase or decrease in profit levels."C-Company profit down by 15% for the last financial year“
    A salesperson may be given a commission as payment for selling goods.  The commission can be a percentage of the sales made.
    "Position Vacant:  20% commission on all sales to the successful applicant.“
    Articles such as antiques or jewelery may increase in value as time goes by-appreciation.
    Items such as equipment and machinery usually decrease in value-depreciation
  • 4. When do we add a percentage?
    Weadd a percentagewhentheprice of anitem at a shop has tax.
    Anotherexample of addedpercentagesiswhen at a restaurant a certainamountispaid as a tip.
    A thirdsituationwouldbewhenanamount has increasedover a period of time: forexample , theprice of anitem, theminimumwageorthepopulation of a country fromoneyeartoanother.
  • 5. When do we subtract a percentage?
    Thefirstsituationwouldbewhenanitem in a shop has a discount.
    Anotherinstancecouldbewhenwewanttoknowthe original price of anitemwhich has a taxonit.
  • 6. How do wefindthepercentof anamount?
    Exercise: findthe 17% of $65
    Steps:
    Changethepercentto decimal : 17% = 0.17
    Multiplytheamountbythe decimal : 65x0.17
    Theproductisthe 17% of 65.
    65x0.17 = 11.05
  • 7. Addingpercents
    Sometimeswehavetopaytaxes.
    Example: I am goingtobuy a sweater whose regular priceis $65. Butit has a tax of 17%.
    In this case, wehavetoaddthepercent.
    Sincewealreadyknowthat 17% of 65 is 11.05, theonlystep I havetofollownowistoaddthislastamounttothe original price:
    65+11.05 = 76.05
    Thelastamountisthe total price I havetopayforthecoat: $76.05
  • 8. Applydiscountpercent
    Once youhavefoundthepercent of anamount, yousubtractitfromthe original price, ifthesituationcallsfor a discount.
    Example: I am goingtobuy a coatwhose regular priceis $65, buton sale it has a discount of 17%. Howmuch do I havetopay?
    Steps:
    I alreadyknowthat the17% of 65 is = 11.05
    Now I subtractitfromthe original price: 65 – 11.05=53.95
    Thedifference: $53.95 isthe final amount I am goingtopay.

×