XLookUp and Sum (Formula Support)

[E_D123]

Hi there,

I'm trying to create an attrition based formula using a combination of both XLOOKUP and SUM. 

In the attached example, I want to use the following calculation within a single cell:

Group A:

2021 (Start) + 2021 (End) / 2 = AVERAGE

Leavers (Total) / AVERAGE = ATTRITION %

Then the same calculation above, but specific to Group B and Group C. I thought that by using XLOOKUP, it would help separate out the groups. 

Within the attached, feel like I'm on the right track as illustrated within the 'Current XLOOKUP Formula' section - but I can't work out the next step once I have the average. Not even sure if it's possible to even achieve? 

Thank you in advance for any help!

[#2]

@E_D123 I believe the formulas in the desired outcome section are wrong, so I changed them and completed the XLOOKUP formulas. See attached.

[#3]

Ah thanks for flagging, that was my mistake within the example.

Do you know how to capture the attrition % within the 'Current XLOOKUP Formula' section, so it's all within a single cell?

[#4 · Accepted solution]

@E_D123 See attached!

[#5]

@Riny_van_Eekelen Perfect- thank you!!