Count with changes in multiple criteria

Hello,

I am trying to add a .1 and increase by .1 each time there is a change in two columns. Attached is an example where the first column would signal a change in a company and the second column would signal a change within one company's description for a transaction. I have a column showing the result I am trying to get. I have attempted a number of formulas and they aren't working how I would like them to. Any help would be appreciated.

Should D6 ( and hence D7) not be suffix of 0.2 as there has been a change in Remark for the same Invoice Number?

I would like the .1 to increment upward for each change in remark field and reset to .1 for each change in invoice field

4180706-2003 02/02-03/04 #AUGM1 E 4180706-2003.1 row 6
4180706-2003 01/01-02/01 #92564300 W 4180706-2003.1 row 7
4180706-2003 01/01-02/01 #92564300 W 4180706-2003.1
4180706-2003 01/07-02/05 #101542300 W 4180706-2003.2
4180706-2003 01/07-02/05 #101542300 W 4180706-2003.2
4180706-2003 01/07-02/05 #101566300 W 4180706-2003.3

It is the Same invoice

yes it is the same invoice however there is a secondary invoice in the remark field. I am trying to separate with an incremental .1 for the change in the remark field with a reset to .1 whenever the invoice field changes. The example I input in the example column shows what I am trying to accomplish.

Rows 3/4: same Invoice number but different remarks so suffix of .1 and ,2
row 5 NEw invoice number , suffix .1
row 6 same invoice, new remarks suffix .2
row 7 same invoice, same remark suffix ,2 (as per row 6)
row 8 same invoice new sremark, suffix .3

yes that is correct John.

@kvsrinivasamurthy. It looks like you are keying off of the example column. That won't be there and the increments aren't working in all cases. It is in some of them.

Thanks everyone. The formulas worked nicely and as expected. Much appreciated!