During October, 5000 kg of material are put into a process. The normal loss is 10% of input. There is no opening or closing work-in-progress. Costs are incurred in the process during the month total R40500. The actual output is 4650 kg. Which of the statement(s) is/(are) incorrect? There is an abnormal loss of 100 kg The cost per kg is R9 There is an abnormal gain of 150 kg The expected output is 4 500kg