Griffin Metals Co. has provided the following data:

The selling price is expected to be \($300\) per tonne for the first six months and \($310\) per tonne thereafter. Variable costs per tonne are predicted as \($120\) in the first quarter, \($125\) in the second and third quarters, and \($130\) in the fourth quarter.
Fixed costs (in \($’000\) per quarter) are estimated as follows:

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Anticipated volumes (assume production equals sales each quarter): Quarter 1 100,000 tonnes Quarter 2 110,000 tonnes Quarter 3 105,000 tonnes Quarter 4 120,000 tonnes