Array Formula to Calculate Cumulative Return Less Withdrawals

[jaydee67]

Hi,

I am trying to create a formula to calculate the value of a stock portfolio after a series of annual returns/(losses) and after withdrawing an annual amount based on a % of the original balance.

For example, I have an opening balance of $100 and want to withdraw 4% of the original balance each year. I have a series of annual returns/(losses) that I want to apply. The right answer is $198.09 in C15 below. The array formula in C17 calculates the correct ending value if there are no withdrawals, but I am trying to figure out how to modify or replace this formula include a withdrawal % of the original balance. I don't want helper columns, and C1 and C2 will vary.

Thanks,

jd

 

[jaydee67]

Sorry, the image didn't post correctly. Here it is.

	[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]A[/COLOR]​	[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]B[/COLOR]​	[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]C[/COLOR]​	[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]D[/COLOR]​	[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]E[/COLOR]​	[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]F[/COLOR]​	[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]G[/COLOR]​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]1[/COLOR]​		Open Value​	$ 100.00​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]2[/COLOR]​		% Withdrawal​	4%​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]3[/COLOR]​		Annual Withdrawal Amount​	$ 4.00​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]4[/COLOR]​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]5[/COLOR]​	Year​	% Return​	Balance End of Year​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]6[/COLOR]​	1​	8.41%​	$ 104.41​		=C1*(1+B6)-(C$1*C$2)
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]7[/COLOR]​	2​	5.59%​	$ 106.25​		=C6*(1+B7)-(C$1*C$2)
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]8[/COLOR]​	3​	6.01%​	$ 108.63​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]9[/COLOR]​	4​	13.44%​	$ 119.23​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]10[/COLOR]​	5​	10.92%​	$ 128.25​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]11[/COLOR]​	6​	-7.08%​	$ 115.17​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]12[/COLOR]​	7​	15.58%​	$ 129.12​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]13[/COLOR]​	8​	21.86%​	$ 153.34​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]14[/COLOR]​	9​	9.40%​	$ 163.75​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]15[/COLOR]​	10​	23.41%​	$ 198.09​		=C14*(1+B15)-(C$1*C$2)
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]16[/COLOR]​
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]17[/COLOR]​			$ 269.80​		={PRODUCT(1+B6:B15)*C1}
[COLOR=[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FFFFFF]#FFFFFF[/URL] ]18[/COLOR]​

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