Crane Horticulture provides and maintains live plants in office buildings. The company's 850 customers are charged $30 per month for this service, which includes weekly watering visits. The variable cost to service a customer's location is $17 per month. The company incurs $2,000 each month to maintain its fleet of four service vans and $3,000 each month in salaries. Crane pays a bookkeeping service $2 per customer each month to handle all invoicing and accounting functions. (a) Prepare Crane's contribution format income statement for the month. Per Unit Contribution Margin $ $ $ $ > > $