If you did your duty to Microsoft and upgraded your Office package recently, you will now be using Excel 2007 for your calculations.
Try this one -
850*77.1
What answer did you get? Was it 100,000? If that is the case, you are using Excel 2007 because all calculations which involve this answer should actually give the answer 65,535. Try it on an older version of the software.
Microsoft have yet to admit what the problem is, however, the simple workaround is to not use Excel 2007 until the problem is solved.
