ARGH! Need maths help!

[blamebrampton]

I was once good at maths.

I know I should know how to do this, but I cannot remember enough to see if my method is effective or not. I found a website that will let me punch in numbers and give me an answer, but I want to check it! So I am hoping that shocolate  or someone similarly gifted is up and about.

I start with $50. Every week, I add $50. I have a compounding interest rate of 9.96%. I compound it annually, or monthly (two results). What do I have at the end of 21 years?

More than happy to do all the actual working if someone can remind me of what the formulae are.

Comments

Re: Interest

[blamebrampton.livejournal.com]

HEE! Yes, totally unreal world ;-) It's basically looking at what a real-world investment with regular inputs would have done if invested in the ASX 21 years ago.

The last time I did anything like this, I proved that you would have been about $10 billion richer if you followed one particular financial adviser for 30 years. Of course, he was the little columnist who turned up for work on the train and wore a nice hat but old jacket, because he could only be happy investing in things he didn't know anyone on the board of ...