Wember Catering uses two measures of activity, jobs and meals, in the coist formuias in its budgets and perfoemance reports. The cost fomula for catering supplies is $400 per month phus $82 per yob phus $10 per eat A typical job involves serving a number of meals to guests at a corporate function or at a hosts home. The company expected its activity in September to be 20 jobs and 144 meals, but the actual actvity w 1M yotbs and 141 meals. The actual cost for catering supplies in September was $3100. The catering suppies in the planning budget for September would be closest to