Need help with Microsoft Excel 2007 formula

I have an Excel database with a single column showing different product cost and I want to add markup to each product cost based on that product cost.

For instance if the cost of the product  is less than $10 then markup is 25%,  but if cost is >$10 but < than $20 markup is 22%, if cost is >$20 but <$30 then markup is 20%,  etc. And the result of the calculation put in a seperate column.

Was considering using the  =LOOKUP but not sure of the formula:
Here's what I came up with but Excel doesn't like it. (A1 is one cell with the actual Cost).

=LOOKUP(A1,{10,20,30},{A1*.25+A1,A1*.22+A1, A1*.20+A1})

I'm new at Excel and would appreciate any help! Thanks
nucomputerguyAsked:
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byundtCommented:
Excel wasn't liking your LOOKUP formula because you put cell references inside an array constant. If you pull those out, the formula should work:
=LOOKUP(A1,{10,20,30},A1*{0.25,0.22,0.2}+A1)          how your formula could be converted
=LOOKUP(A1,{10,20,30},A1*{1.25,1.22,1.2})                  alternative conversion

If you are going to take this approach, make sure that you include a 0 bracket. If you don't, the formula returns an error if A1 is less than the smallest value in the first array constant. The first formula below adds a 0 bracket, while the second one converts the 10 bracket into a 0 bracket.
=LOOKUP(A1,{0,10,20,30},A1*{0.30,0.25,0.22,0.2}+A1)
=LOOKUP(A1,{0,20,30},A1*{0.25,0.22,0.2}+A1)
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Paul 1Commented:
your value in cell A1

=IF(A1>30,A1*1.2,IF(A1<10,A1*1.25,A1*1.22))

first 'if' deals with value > 30 and if its not the else portion evaluates next
Second 'if' deals with value < 10 and 'else' has to be in the 22% range

Edit the 30 and 10 as required
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ola_erikCommented:
To make it mathematical:


price     range                    markup                adjusted price
               =trunc(a1/10)       =25-(b1*2)           =a1*(1+(c1/100))    or somethingd
5               0                            25    
12             1                            23
14             1                            23
16             1                            23
25             2                            21
35             3                            19
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Paul 1Commented:
I just re-read the question and made a mistake on the origional calculation
But the nesting of if statements should work with a little adjustment

=IF(A1<10,A1*1.25,IF(AND(A1>10,A1<20),A1*1.22,IF(AND(A1>20,A1<30),A1*1.2,A1*1.18)))

I set the last range( >30) to 18%
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Rob HensonFinance AnalystCommented:
See attached use of VLOOKUP with a small table of values to lookup.

Examples in column A, all doing lookup in G1:H5

Thanks
Rob H
Lookups.xlsx
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nucomputerguyAuthor Commented:
Thanks for the help. Your formulas turned on a light and made it happen! Love the array concept. Thanks
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