# Excel/Excel Formula

Question
I have a medical plan that requires the covered person to meet a deductible at which point the co-insurance kicks in. It could kick in in the middle of a service or after the service is rendered. For example, the deductible is \$500 and then the co-insurance is 80/20 where 20% is for the covered person. If I have the first billing at \$450 and the second billing is \$100 then the co-insurance would kick in for the amount over \$500 or \$50 so the amount would be \$10 (20% x 50) due by the covered person. Finally, the third billing is \$200 so the full amount would be subject to co-insurance or \$40 (20% x 200).

Can this be written in one formula? Is so how? I tried some conditional statements but that left me with conflicts or the wrong answer.

Thanks,

Chris

Chris:

It all kind of depends on how you want to set up your spreadsheet, but I set one up as follows:

https://www.dropbox.com/s/x5jydbtxsyjv531/coinsurance.xlsx

Please let me know if you have further questions.

Questioner's Rating
 Rating(1-10) Knowledgeability = 10 Clarity of Response = 10 Politeness = 10 Comment This seems like it will work. I will play around with it. Thanks

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#### Nathan

##### Expertise

This expert requires a donation of \$5 for questions answered (satisfaction guaranteed). Isn't \$5 a value for this experts time?
Microsoft Excel questions related to advanced formulas, Pivot Tables, filters, forms, graphs, and just about anything else (EXCEPT Visual Basic Coding/Programming and Macros, I don't answer questions in those categories).

##### Experience

I have been using spreadsheets since Lotus 1-2-3 was released.

Education/Credentials
Certified Public Accountant (CPA)