Query Criteria Where Date = Max Date - 3 months

I currently have quarterly data for employees where PerEndDt represents the end date for each quarter

The following Sql queries the current quarter. How can I modify it to return the prior quarter?
SELECT qEmplByMth.Clock, qEmplByMth.EmployeeName, qEmplByMth.Program, qEmplByMth.PerEndDt
FROM qEmplByMth
WHERE PerEndDt IN(SELECT MAX(PerEndDt ) FROM qEmplByMth)
ORDER BY qEmplByMth.EmployeeName, qEmplByMth.PerEndDt;
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DavisroBudget AnalystAsked:
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Scott PletcherSenior DBACommented:
WHERE PerEndDt IN(SELECT MIN(PerEndDt) FROM (SELECT TOP (2) PerEndDt FROM qEmplByMth ORDER BY PerEndDt DESC))
Rey Obrero (Capricorn1)Commented:
try this

SELECT qEmplByMth.Clock, qEmplByMth.EmployeeName, qEmplByMth.Program, qEmplByMth.PerEndDt
FROM qEmplByMth
WHERE PerEndDt IN (SELECT TOP 1 [PerEndDt] From qEmplByMth Where [PerEndDt] < DMax("PerEndDt", "qEmplByMth") Order By [PerEndDt] Desc)
ORDER BY qEmplByMth.EmployeeName, qEmplByMth.PerEndDt;

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DavisroBudget AnalystAuthor Commented:
Works!!!
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