| My financial calculator had a battery that lasted for years, but gave up the ghost a while ago, and I haven't been ableto find one of the ones that the manual recommends. You can get one for about $35., and I suggest that it would be a good investment. Assuming 6% rate of return ... but, firstly ... is that the rate offered by the entity using the money? If so, do you plan to pay the incometax on the annual earnings from that yer's income, or do you plan to have the invested asset pay it? If so, and your marginal (i.e. highest) tax rate is 16.66%, you're looking at 5%. And, do you want to allow for inflation? They say that's about 2% ... but I think they're off of the mark, as I think that it's more like 4%, possibly higher. If 2%, that leaves you with 3% gain, after allowing for taxes and inflation. Are you familiar with the rule of 72? That says that if you divide that rate that you're getting into 72, it'll tell you how many years it'll take for your money to double. Dividing your 6% into 72 gives 12, so your $10,000. will double 3.33 times to $33,333. in 40 years. Taking my figure of 3% (and let's not even think of the possible 1%), it'll double in 24 years, so about 1.66 times to $16,666. in 40 years. Try it in your regular calculator. Your $10,000. will earn (whatever rate you choose) for 40 years, and next year that $10,000. will earn that rate for 39 years, then 38 years, etc. So enter into your regular calculator $10,000. X 1.06 (or 1.03; or 1.01, if you think you'll end up earning about 1%), then press "=", and that figure is $10,600., $10,300. (or possibly $10,100). The press "M+" to add it to memory. Then press "=" again, which will show how much the original $10,000. will have grown to, after 2 years, about $11,250. Then press "M+" again. If you do not get a gfigure of $10,600. or so after the first "+", reverse the order in which you enter the numbers, until you get thaat figure after the first "=". The figurethat you entered into memory at first what the amount earned by the $10,000. in one year ... which will be the amount that the $10,000. invested in the 39th year grew to after one year, and pressing "M+" after the second "=" will be the amount that the $10,000. invested in the 38th year grew to, after 2 years. When you press the "M+" after the 39th time that you press "=", that amount will be the amount that the original $10,000. will have grown to, after those 39 years. If your calculator runs out of room, use $1,000. as the original figure and multiply by 10. Good wishes. ole joyful |