Pasting a formula from Excel to Powerpoint

[True_Blue_32]

Good morning, my first post so please be kind!
Currently I am trying to work out if it is possible to paste a formula that is created in Excel into Powerpoint.
Briefly I have a table which is used to create a chart, and I then copy / paste this using 'Keep source formatting and embed workbook'.



I then have another small table that I paste into Excel using the same method above, this table has a sum of a couple of cells from the table above but when this pasted into Excel the formula doesn't work.

Can you please tell me if this is possible?