Choice to make between altruism and greed — that's about right (4,2,4)

I believe the answer is:

give or take

'that's about right' is the definition.

'choice to make between altruism and greed' is the wordplay.
I cannot quite understand how this works, but
'make' could be 'give' (giving is a kind of making) and 'give' is located in the answer.
This explanation may well be incorrect...

I've seen this clue in The Guardian.

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