troubleshooting Question

need to calculate percentage from table data

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sqlcuriousFlag for United States of America asked on
Microsoft SQL ServerMicrosoft SQL Server 2008
11 Comments1 Solution288 ViewsLast Modified:
Hi experts,
I need to calculate percentage from a table with data as below
Cust_no  On-time
1                O
1                N
1                O
2                N
2                N
2                O
2                O

So I need to add a column called PercOntime = 100X(count(O)) / Total count

For the column On-time , flag O- ontime payments and  Flag N- not on time.
Please help with the logic
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