The first equation can’t be right. If r=1, you have no discount rate; you will ask for $2000 for your website. But the equation a/lnr gives the answer infinity (ln1 = 0).
The first equation can’t be right. If r=1, you have no discount rate; you will ask for $2000 for your website. But the equation a/lnr gives the answer infinity (ln1 = 0).