Posts Tagged ‘Money’

Managing holiday money with an Excel burn down chart

Tuesday, March 2nd, 2010

If you go on a short holiday then it should be pretty easy to manage your holiday money. It isn’t too hard to track how quickly your foreign currency is running out when you are only abroad for a week or two.

If you are going on holiday for a number of months then it becomes a bit harder. When I recently went on holiday for three months I thought being able to record my available currency in the form of a burn down chart would be a useful thing to do.

I ended up creating an excel spreadsheet which when filled in gave me three lines on a graph.

holiday money burndown chart

  1. The first straight line (pink) goes down from the total amount of foreign currency on the first day of my holiday to 0 on the last day of my currency. This line shows where my currency reserves should be on average each day in order to spend all the money I took with me.
  2. The second line (blue) is the actual amount of foreign currency that I have left. A few times a week I would count up how much money I had left, and enter the data into the Excel spreadsheet. This would then update the second line. If this line is above the straight line then I’m under spending (on average), if the line is above the straight line then I’m over spending. The concept of under or over spending is of course ‘on average’. There may be good reasons why your spending during your holiday might be unevenly spread.
  3. The third line (yellow) is plotted against the axis on the right of the chart. This shows how much currency I have left per day on average.

Using the holiday currency burn down spread sheet

To make it easier to see how to use the spread sheet I have put a load of example data in the yellow cells. When you understand it you will have to remove the example data and enter your real data. Don’t delete anything in the red cells as these cells contain the formulas which will make it all work.

holiday money burn down spreadsheet

I have put comments in cells A2, B2, H2, I2 and I3 explaining what you need to put into these cells to get the spread sheet setup for your own holiday.

Then all you need to do is update it every few days and you’ll be able to see how fast your holiday money is burning down.

Download the holiday money spreadsheet from here (12kb).

Find out the cost of calling any telephone number

Tuesday, October 7th, 2008

Often you will see UK telephone numbers with codes such as 087xx, and a price for calling that number will be listed. How do you know that the price is actually correct?

I would have thought the BT would have a simple page where you can enter a telephone number into a box and be told instantly the correct cost of calling it. I’ve been unable to find such a page but I have (after a fair bit of searching) managed to find out how to get this information from BT’s web site. I wanted the information from BT’s website as it is more likely to be accurate and up to date than from any other site.

I was prompted to find out how to do this as I wanted to be sure of the cost of an access number for calling a Japanese mobile phone. The web page of the dialing company told me it would cost 7p / minute.

0871 call cost

Looking up the price seems to be a two stage process. You need to find the Tariff Guide on their Products and Services page in the Personal section of their site.

You need to click on the Residential and Business special number call prices PDF link under the Pricing information heading.

This document has a large list of the starting codes of all phone numbers. You need to search through this list until you find the one that matches the number you have. You then need to make a note of the ‘Type of call’ code. In my case it is ‘g13′.

telephone number lookup

Further down the document you will find another table that tells you the cost of calling each ‘Type of call’ number. By cross-referencing these two pieces of information I’ve confirmed that the number is correctly advertised as costing 7p / minute.

call cost table

Graphing the AXA Sun Life 50 Plus Protector

Wednesday, August 27th, 2008

Following on from my post where I graphed the AXA Sun Life Guaranteed Over 50 plan I thought I’d look at a more complex product to see what kind of graphs I could get out of it. Unlike the Over 50 plan, the AXA Sun Life 50 Plus Protector features a lump sum and premium that increases over time. There is also a maximum number of years that the premiums are payable for. As there are a number of extra rules it should produce some interesting graphs!

As before I’ll mention that I’m not writing this to offer an opinion on this particular product. I’m not a financial advisor. My interest is to show how you can convert the information about financial product into graphs. These graphs can be of great help in deciding whether a financial product is suitable for you.

I got a quote from their website for a 60 year old male paying in a premium of £7 per month. These figures are what I was quoted on the day I did the quote (late August 2008).

The premium of £7 will rise by £0.35 per year for a maximum of 20 years when it will be double the initial premium. It will then remain level until it stops altogether at the age of 90. The cash lump sum is payable on death after two years. It is £1095 and will rise by £50 per year. If you were to die within two years the lump sum would be 1.5x the amount paid into the plan. There is no cash in value – if you stop paying money into the plan you get nothing.

The first graph I’ll make is to show how your premiums vary over the years. You can see them increasing every year, until the age of 80 when they level off. After the age of 90 you don’t pay any more premiums.

axa sun life 50 plus protector cost of premium

The next graph shows the cumulative cost of all the premiums paid into the plan, against the value of the lump sum. You can see (if you look carefully) that the premiums paid line increases in angle for the first 20 years. It is then a straight line for the next 10 years. The line then goes flat from age 90 as no more premiums are payable. The lump sum payment starts off at 1.5x the amount of premiums paid in, after two years it goes to the full lump sum value which increases by £50 each year.

axa sun life 50 plus protector plan cost vs lump sum

You can see that there is a crossover point at which you pay more in premiums than the lump sum you get back. You can also see that as you don’t pay any more premiums after age 90 the lines start coming together again. I continued the age range to 120 to see at what point they diverge for the second time.

I then produced a graph to show by what percentage the lump sum and the premiums go up. The text on their website says that both go up by 5% of the original lump sum / premium each year. An increase of £0.35 is indeed 5% of the £7 premium. However £50 of £1095 is actually 4.6%. I’m not sure whether they are rounding the lump sum increase down, or whether there is some error in their calculation.

axa sun life 50 plus protector lump sum increase

Despite the slight discrepancy in percentages both premium and lump sum follow an almost identical curve of decreasing percentage increases each year. The premium increases drop to 0% after the age of 80 as per the plan description. The lump sum increases by £50 each year so the percentage increase keeps dropping. It is therefore important to understand the effect that inflation will have on this plan.

I hope you found this interesting. These three graphs took me about 15 minutes to do and provide details of this product in a much easier to analyse format than the pure text description of the product as given on the AXA page.

As I started before I’m not offering you an opinion of their plan, more a reason why getting to grips with a spreadsheet package like Microsoft Excel will help you with making financial decision.