With cash flow schedule

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You will find the savings withdrawal calculator to be very flexible. While it is most frequently used to calculate how long an investment will last assuming some periodic, regular withdrawal amount, it will also solve for the " Starting Amount", "Annual Interest Rate" or "Regular Withdrawal Amount" required if you want to dictate the duration of the payout. That is, if the withdrawals must last for say 25 years, it will calculate one of these other three values.

Enter any three values and enter a "0" (zero) for the one unknown value.

A note or two about "Compounding Frequency". Selecting he "Exact/Simple" option sets the calculator so it will not compound the interest. Also, the exact number of days between withdrawal dates is used to calculate the interest for the period. The "Daily" option uses the exact number of days between dates, but daily compounding is assumed. (The interest earned each day is added to the principal amount each day.) The "Exact/Simple" compounding option is the most conservative setting. That is, using it will result in the lowest future value. Daily compounding will result in nearly the greatest future value (except for "Continuous Compounding".

The other compounding frequencies are based on periods of time other than days. Each period is assumed to be of equal length for the purposes of interest calculations. That is, assuming a balance of $10,000, the interest earned for January will be the same interest earned for February given the same interest rate.

is there a calculator that let’s you calculate withdrawl by percentage of the total balance?

Over 2 to 3 decades a retiree will probably not put the same amount of money every month due to inflation costs, but may want to stick a 3 to 4% withdrawal rate.

Thank you.

There isn’t if I understand you. For I wonder if that’s what you actually want? This means the income is declining. Start at $1,000,000 and take out 5% the income is $50,000 of course but when the balance is at $100,000, the income has dropped to $5,000.

The Ultimate Financial Calculator will let you make the initial $50,000 withdrawal and then INCREASE it by say 2% for an inflation adjustment.

Thanks for the reply. Sorry if there is confusion in my question. Was just wanting withdrawl based only on percentage and not a set value. Wanted to see actual takehome was while not not touching the principle. e.g. if account grows 8% a year and inflation is 3%. Wanted to withdraw just 3%, leaving account to grow 2% above inflation a year. 8-3-3=2

Thanks for the clarification. I think that sounds pretty interesting. I’ll add it to my TODO list.

Thanks a bunch!

Hey just wondering what equation is being used for this question? Like PV annuity or something.

The calculator answers many questions, not just one. Notice it will solve for several unknowns. It does use PV of an annuity among others. Beyond that, I never get into the details of the equations.