Last month, 31,000 direct labour hours were worked at a cable manufacturer. Production achieved was equivalent to 30,000 di cost. Budget production was 33,000 hours.Production-related overheads were 155,000 compared to a budget of 165,000. Based on the above, what was the overhead volume variance? 10,000 Favourable. 16,500 Adverse. 25,000 Favourable. 6,500 Favourable