1. ## Spreading amounts across colums

What I'm trying to achieve is to spread amounts across columns. In the columns C to M below, this represents future months income, i.e. what is actually received from customers in the month. However, the income received is prepaid, so it is for future months. Column B represents the number of months the income is in advance for (e.g. prepaid insurance or software support etc.).

So what I'd like to end up with is what I've shown in Row 6. In Jan 17 (Column C) you have 1/10 of £1,000; Feb 17 (Column D) you have 1/10 of £1,000 + 1/10 1,050; Mar 17 (Column E) 1/10 £1,000 + 1/10 £1,050 + 1/10 £1,100, etc. until you get to the eleventh row when Jan 17 drops off and Nov 17 gets added, and so on.

I'd like to do this with a formula somehow please. Row 7 would represent the numbers in row 3, but spread over 8 months and row 8 would represent row 4, but spread over 5 months.

I have chosen randomly 10, 8 and 5 months, but the period could be other periods too, it's the formula I'd like to then use for all periods of spreading the amounts.

There is one more option to add into the formula, whereby the first month could be offset by one month. So in the example below in Row 6, the first £100 would appear in column D, or Feb 17, as it has been offset by 1 month.

 A B C D E F G H I J K L M I J K L M N O P Q R S 1 Months Advanced Jan-17 Feb-17 Mar-17 April-17 May-17 June-17 July-17 Aug-17 Sept-17 Oct-17 Nov-17 Dec-17 Jan-18 Feb-18 Mar-18 April-18 2 10 1000 1050 1100 1150 1200 1250 1300 1300 1300 1300 1300 1400 1450 1400 1500 1600 3 8 2050 2100 2400 2400 2500 2550 2500 2100 2050 2300 2100 2350 2500 2500 2500 2600 4 5 5000 5100 4500 5900 6000 6500 6000 5780 5500 6000 6100 5900 4500 5000 5100 5250 5 6 10 100 205 315 430 550 675 805 935 1065 1195 1225 1260 1295 1320 1350 1385 7 8 8 5 9

Thank you in advance of help on this one. If what I've said does not make sense, please ask.

2. ## Re: Spreading amounts across colums

Welcome to the forum.

I'm not sure how you use this, but I think the explanation of how you want it calculated is clear enough.

Excel 2012
A B C D E F G H I J K L M N O P Q
1 Months 17-Jan 17-Feb 17-Mar 17-Apr 17-May 17-Jun 17-Jul 17-Aug 17-Sep 17-Oct 17-Nov 17-Dec 18-Jan 18-Feb 18-Mar 18-Apr
3 10 1000 1050 1100 1150 1200 1250 1300 1300 1300 1300 1300 1400 1450 1400 1500 1600
4 8 2050 2100 2400 2400 2500 2550 2500 2100 2050 2300 2100 2350 2500 2500 2500 2600
5 5 5000 5100 4500 5900 6000 6500 6000 5780 5500 6000 6100 5900 4500 5000 5100 5250
6
7 10 100 205 315 430 550 675 805 935 1065 1195 1225 1260 1295 1320 1350 1385
8 8 256.25 518.75 818.75 1118.75 1431.25 1750 2062.5 2325 2325 2350 2312.5 2306.25 2306.25 2300 2300 2362.5
9 5 1000 2020 2920 4100 5300 5600 5780 6036 5956 5956 5876 5856 5600 5500 5320 5150
Sheet1

Worksheet Formulas
Cell Formula
B7 =SUM(OFFSET(B3,0,MAX(COLUMN(\$B1)-COLUMN(B1),1-\$A3),1,MIN(\$A3,COLUMNS(\$B3:B3))))/\$A3

Put the formula in B7, and copy down and across.

Hope this helps.

3. ## Re: Spreading amounts across colums

Hello Eric, you are a genius, thank you.

Have a fab day

4. ## Re: Spreading amounts across colums

Glad to help! Thanks for the feedback.