Crossword Genius

Percent lost came to be worked out in insurer's estimate (11,4)

Ross

I believe the answer is:

replacement cost

'insurer's estimate' is the definition.
(cost calculated by an insurer)

'percent lost came to be worked out' is the wordplay.
'to be worked out' indicates anagramming the letters.
'percent'+'lost'+'came'='percentlostcame'
'percentlostcame' is an anagram of 'REPLACEMENT COST'.

'in' acts as a link.

(Another definition for replacement cost that I've seen is " outlay for subs".)

I've seen this clue in The Guardian.
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