Albin Company uses activity-based costing to compute product costs for external reports. The company has three activity cost pools and applies overhead using predetermined overhead rates for each activity cost pool. Estimated costs and activities for the current year are presented below for the three activity cost pools: Estimated Expected Overhead Cost Activity Activity 1 $42,700 2,000 Activity 2 $24,934 2,600 Activity 3 $49.289 2,300 Actual costs and activities for the current year were as follows: Actual Overhead Cost Actual Activity Activity 1 $42,855 1,995 Activity 2 $24,794 2,595 Activity 3 $49.294 2,295Cost Cost Formula Indirect materials $2,000 plus $0.40 per machine hour Maintenance $1,500 plus $0.60 per machine hour Machine setup $0.30 per machine hour Utilities $200 plus $0.10 per machine hour Depreciation $800 Based on these cost formulas, the total overhead cost at 600 machine hours is expected to be?8. With this information please give the equation using least squares method. London Inc. has identified the following costs at different activity levels for electricity for their manufacturing plant: Units Produced Electricity Cost 1,000 $50,000 2,000 $97,400 3,000 $148,000 4,000 $192,500 5,000 $242,000