2. Determine a reasonable cost per load for the chosen machine. This will represent the amount each load of laundry will cost [Is In wash. Follow these steps to find the cost per lead: 1. Consult the machine's Energy Guide, which is usually located on the webpage where your machine can he purchased from. The Energy Guide will contain the cost of the product's energy per year, as well as the average loads per week. Use this information to help you find the cost of energy per load. 2. Add $0.10 per load for the cost of water. 3. Add $0.15 per load for the cost of detergent. 4. Edd $0.5D per load for the cost of employee labor