【考點】 process costing – normal loss / abnormal loss
  【Q】 A chemical process has a normal wastage of 10% of input. In a period, 2 500 kgs of material were input and there was an abnormal loss of 75 kgs.
  What quantity of good production was achieved?
  【A】Normal loss = 2 500 * 10% = 250 kgs
  Abnormal loss = 75 kgs
  So, actual loss = 250 + 75 = 325 kgs
  Actual good production = 2 500 – 325 = 2 175 kg