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2. Sissac Catering uses two measures of activity, jobs and meals, in the cost formulas in its budgets and performance reports. The cost formula for catering supplies is $640 per month plus $113 per job plus $29 per meal. A typical job involves serving a number of meals to guests at a corporate function or at a host's home The company expected its activity in May to be 21 jobs and 130 meals, but the actual activity was 16 jobs and 135 meals. The actual cost for catering supplies in May was $6.250. The spending variance for catering supplies in May would be closest to O $113 U S533 U O $533 F O $113 F