4. Suppose you have a pizza parlor. Business is great and you decide that you need a new oven to cook enough pizzas to meet demand. This amazing oven costs you $315,000 and has a salvage value of 10% of the purchase cost. This oven is considered five-year property. Please calculate the first year's depreciation deduction for this oven using both the straight-line and the double declining balance elections. Hint: Don't forget "convention" you remember..... half-year!