Filtering dates for 2 previous months Power BI

Question

I'd like to create a table that shows the count of occurrences within a certain month.

My Data

Product	Expiry Date	Date
Coke	02/02/2023	Jan-21
Pepsi	23/08/2024	Jan-21
7up	01/01/2023	Jan-21
Fanta		Jan-21
Coke	02/02/2023	Feb-21
Pepsi	05/08/2024	Feb-21
7up	01/01/2023	Feb-21
Fanta	02/04/2023	Feb-21
Coke	08/05/2023	Mar-21
Pepsi	23/08/2024	Mar-21
7up	27/01/2023	Mar-21
Fanta	02/02/2023	Mar-21

What I want to do is to create a table or measure that groups each change and then filters the date column for the previous 2 months (in this case it would be Feb-21 and Mar-21) and then compare the corresponding Expiry Date rows for each product to see if the expiry date had changed and count the changes.

Desired outcome is to create a matrix visual with the below

Change	No. of occurrences
>1 Month Change	2
<1 Month Change	2
No Change	0
No Expiry Date	0

The measure I'm currently using which doesn't work is:

var _minDate= CALCULATE(MIN('Table'[Date]),ALLEXCEPT('Table','Table'[Product]))
var _maxDate= CALCULATE(MAX('Table'[Date]),ALLEXCEPT('Table','Table'[Product]))
var _minED=  CALCULATE(MAX('Table'[Expiry Date]),FILTER( ALLEXCEPT('Table','Table'[Product]),'Table'[Date]=_minDate))
var _maxED=  CALCULATE(MAX('Table'[Expiry Date]),FILTER( ALLEXCEPT('Table','Table'[Product]),'Table'[Date]=_maxDate))
return SWITCH(TRUE(),
ISBLANK(_minED) || ISBLANK(_maxED), "No Expiry Date",
_maxED=_minED,"No change",
_maxED>EOMONTH(_minED,0),"> 1 month change",
_maxED<EOMONTH(_minED,0),"< 1 month change"
)```