sp_Blitz: check 92 fails with an arithmetic overflow when disk is almost full

[ScottL1969]

Version of the script
SELECT @Version = '8.01', @VersionDate = '20210222';

*What is the current behavior?
Msg 8115, Level 16, State 8, Line 1
Arithmetic overflow error converting numeric to data type numeric. When a drive calculates to 100.00 pct full. It actually has like 8 MB.

If the current behavior is a bug, please provide the steps to reproduce.
Fill up a drive

What is the expected behavior?
Script runs with no error.

@debug = 1

Running CheckId [92].
Msg 8115, Level 16, State 8, Line 1
Arithmetic overflow error converting numeric to data type numeric.
The statement has been terminated.
Running CheckId [103].

Fix: ,(CONVERT(DECIMAL(4,2),(total_bytes/1.0 - available_bytes)/total_bytes * 100)) AS used_percent
Should be ,(CONVERT(DECIMAL(5,2),(total_bytes/1.0 - available_bytes)/total_bytes * 100)) AS used_percent

Calc that failed (100.00) convert only allowed 99.99.
volume_mount_point logical_volume_name total_MB available_MB used_percent
M (New Volume) 153596 136511 11.12
E (New Volume) 1791996 305534 82.95
T (New Volume) 102396 83046 18.90
F (SAPs) 409596 8 100.00

Which versions of SQL Server and which OS are affected by this issue? Did this work in previous versions of our procedures?
SQL 2017

[BrentOzar]

Great, thanks for the bug report. I've fixed it in the dev branch, and it'll be in the April release with credit to you in the release notes.