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namstech
namstech, Electrical Engineer
Category: Microsoft Office
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Experience:  Expert in Microsoft Word, Excel, Powerpoint, Visio
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When using Excel to calculate it does not match the calculator. Excample:

Resolved Question:

When using Excel to calculate it does not match the calculator.
Excample: In column C I put the formula A*B, where A is 39.906
and B is $1,603.00. Excel returns $68,968.55. On a calculator it
returns $63,969.31, hence a .76 diff. How do I correct excel to
calculate as a calculator?
Submitted: 2 years ago.
Category: Microsoft Office
Expert:  namstech replied 2 years ago.
Welcome to JustAnswer!

What is your version of Excel?
Customer: replied 2 years ago.
Office Excel 2010
Expert:  namstech replied 2 years ago.
Please download this excel file.

I have placed A, B and result A*B in A1, B1 and C1 respectively. Do you see any difference with yours?
Customer: replied 2 years ago.
Yes, mine is different. Can I upload you the file?


ASSAY CONTENT RETURN PAYABLE SPOT AMOUNT
TROY Oz RATE TROY Oz PRICE

GOLD 64.02% 40.720 98.00% 39.91 1603.00 63968.55
SILV 0.00% 0.000 90.00% 0.000 $0.00 $0.00
PLAT 0.00% 0.000 85.00% 0.000 $0.00 $0.00
PALL 0.00% 0.000 85.00% 0.000 $0.00 $0.00
Expert:  namstech replied 2 years ago.
It will be helpful if you can upload the file.

You can do that at www.wikisend.com and provide me with the download link.
Customer: replied 2 years ago.
http://wikisend.com/download/650654/NAETCH.xlsx


Expert:  namstech replied 2 years ago.
The problem seems to be with the calculation that results in value in PAYABLE TROY OZ (39.906). Actually the value in cell CONTENT TROY OZ when expanded to 5 decimal places is 40.71992 and thus not exactly 49.720. This is turn results in calculation

40.71992 x 0.98 = 39.90552

which when multiplied with 1603 results in 63968.55 (You can use calculator to verify this calculation).

So the conclusion is that the results of calculator and Excel are not different. It is the result of intermediate calculations that affect the final result.

I hope this explanation helps

Thanks
namstech, Electrical Engineer
Category: Microsoft Office
Satisfied Customers: 2126
Experience: Expert in Microsoft Word, Excel, Powerpoint, Visio
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