Provide Monthly Report To Shows How Successful Deployment Was For Particular Patchgroup

I need to calculate the success rate of our OS Patch deployments. the data from system is stored in SQL with corresponding states (installed, missing, ...)

I would need to provide monthly report that shows how successful the deployment was for particular patchgroup. I have the following 2 dummy tables (just used as example)

table5 ==> Table containing patch groups + patches
table6 ==> Table with machines names, patches and patch state

select * from table5
pgrouppatch
GROUP1PATCH1
GROUP1PATCH2
GROUP1PATCH3
GROUP1PATCH4

[Code] ....

Result would be
pgroup install missing
group1 80% 20%
group2 50% 50%
group3 55% 45%

Ideally I would like to do this in T-SQL but if necessary can also do this in .NET Function. Only mention this but both Patchgroup and machines are dynamic each month can be different.

below are the sql scripts to create tables and populate with data

CREATE TABLE [dbo].[table5](
[pgroup] [varchar](128) NOT NULL,
[patch] [nvarchar](128) NOT NULL
)
CREATE TABLE [dbo].[table6](
[machinename] [varchar](128) NOT NULL,

[Code] ...