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Mix Variance/Yield Variance

YYusuf5y ago
Hi John, I am stuck on a question. Please could you assist? A product has a standard output of 32kg and a standard input of 8kg Input A and 32kg Input B Input A has a standard cost of $10 per kg Input B has a standard cost of $20 per kg The actual output was 6400 kg using 900kg of Input A and 6100kg of Input B. My answer Mix Variance - Actual Mix 900 x 10 = 9000 6100 x 20 = 122000 7000kg - 131000 Std mix for total input (8/40) x 7000) x 10 = 14000 (32/40) x 7000) x 20 = 112000 7000 kg - 126000 5000 adverse Yield Variance Std mix for total input (8/40) x 7000) x 10 = 14000 (32/40) x 7000) x 20 = 112000 7000 kg - 126000 Std total input at std mix (8/40 x 6400 ) x10 = 12800 (32/40 x 6400 ) x 20 = 102400 6400 kg - 115200 Surely it is 10,800 adverse? Answer is coming up as 18000 favourable
John MoffatJohn MoffatTutor5y ago#1
18,000 favourable is the correct answer. For every 32 kg output, the input should be 8 kg of A and 32 kg of B. Therefore for output of 6,400, the input should have been as follows: (8/32 x 6,400) x $10 = 16,000 (32/32 x 6,400) x $20 = 128,000 So a total of $144,000. Have you watched my free lectures on mix and yield variances? The lectures are a complete free course for Paper PM and cover everything needed to be able to pass the exam well.
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