# Thread: Present value of $1 per week 1. ## Present value of$1 per week

Hi folks,

I've been desparately trying to work out the underlying formula for the attached table. If someone could assist me in this, I would be grateful.

Thanks

2. Originally Posted by Scuzzie
Hi folks,

I've been desparately trying to work out the underlying formula for the attached table. If someone could assist me in this, I would be grateful.

Thanks
My first thought would be to graph it and see what it looks like. Have you done this yet?

-Dan

3. Hi Dan, no I haven't graphed it because what I need is the underlying equasion for the attached table and then I can adapt it to calc different multiples of weeks and parts thereof.

$\sum_{k=1}^{n+1} \frac{1}{1.0011^k}$