Try this, Diana. Let me know if you have problems. I tested it against
yours and got the same answers every time.

Mark

Public Function WeightedAvg(A, B, C, D)

Dim ValueA, ValueB, ValueC, ValueD, Total As Double
Dim Vals(3) As Double
Dim Per(3) As Double
Dim Sums(3) As Double

On Error GoTo Handle

Vals(0) = A
Vals(1) = B
Vals(2) = C
Vals(3) = D

Per(0) = 0.5
Per(1) = 0.25
Per(2) = 0.15
Per(3) = 0.1

IsTot = False

For x = 0 To 3
If Vals(x) = 0 Then
IsTot = True
End If
Sums(x) = Vals(x) * Per(x)
Next x

y = 0
If IsTot = True Then
For x = 0 To 3
If Sums(x) < 0 Then
y = y + Per(x)
End If
Next x
For x = 0 To 3
Sums(x) = Sums(x) / y
Next x
End If

Total = 0
For x = 0 To 3
Total = Total + Sums(x)
Next x

WeightedAvg = Total

Handle:
WeightedAvg = 0

End Function

---
Mark Bigelow
mjbigelow at hotmail dot com
http://hm.imperialoiltx.com

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