Henley Horticulture provides and maintains live plants in office buildings. The companys 888 customers are charged $31 per month for this service, which includes weekly watering visits. The variable cost to service a customers location is $19 per month. The company incurs $2,012 each month to maintain its fleet of four service vans and $3,330 each month in salaries. Henley pays a bookkeeping service $2 per customer each month to handle all invoicing and accounting functions. Prepare Henleys contribution format income statement for the month.