Final answer:
Over the next 10 years, Hartley's Meat Pies will see an increase in operating income by $3,000 if they replace their existing delivery van with the new one, due to savings in operating costs despite the additional depreciation expense.
Step-by-step explanation:
If Hartley's Meat Pies replaces the existing delivery van with the new one, over the next 10 years operating income will increase by the amount saved in operating costs, less any additional depreciation expense. To calculate this, we subtract the annual operating costs of the new van from the existing van's costs, and then also consider the increased depreciation expense of the new van.
Annual savings in operating costs: $22,500 - $15,000 = $7,500.
Additional annual depreciation expense: $9,500 - $2,300 = $7,200.
Annual increase in operating income = $7,500 - $7,200 = $300.
Over the 10-year period, this results in total savings of $300 × 10 = $3,000. Therefore, over the next 10 years, operating income will increase by $3,000 if the new van replaces the existing van.