How to create Percentile Table format

Question

I have table below i am looking write tsal For Dashboard purpose.
Actually I want to create parameter Dynamically: if I give value
parameter = 10% this splitting like below: 100/10
parameter = 25%
1-25
26-50
Parameter =5% rang  
1-5
6-10
11-15
16-20
I need Dynamic Input

Answer 1

DECLARE @forumTable TABLE (value float)
WHILE (SELECT COUNT(*) FROM @forumTable) < 50
BEGIN
INSERT INTO @forumTable (value)
VALUES (ROUND(((20 - 0- 1)*rand())+0,2))
END
;WITH pTile AS (
SELECT MAX(value) AS pTileUpper, MAX(value)-(MAX(value)/10) AS pTileLower, 10 AS pTile
FROM @forumTable
UNION ALL
SELECT (pTileUpper/10)*(pTile-1), (pTileUpper/10)*(pTile-2), pTile - 1 AS pTile
FROM ptile
WHERE pTile - 1 >= 1
SELECT COUNT(*) AS cnt, pTile, pTile*10 AS pct, pTileLower, pTileUpper
FROM @forumTable f
INNER JOIN pTile p
ON f.value BETWEEN p.pTileLower AND p.pTileUpper
GROUP BY pTile, pTileLower, pTileUpper
ORDER BY pTile
I think this is something like what you want.
First I set up a demo table to hold some random data for testing/demo. It just puts a bunch of random floats ranging from 0 to 20 in a table.
Using that table, we use an rCTE to create a percentile lookup table, based on 10% increments.
Finally, we can now join the percentile lookup to our table and group by the percentiles to display the following results:
cnt pTile pct pTileLower pTileUpper
1 4 40 0.8468712 1.1291616
1 5 50 2.2583232 2.822904
5 7 70 8.06544 9.40968
10 8 80 11.7621 13.4424
4 9 90 14.936 16.803
6 10 100 16.803 18.67