a firm is evaluting a new machine to replace an existing, older machine. the change in depreciation is $3,000. the firm's marginal tax rate is 30 percent. a. Depreciation does not affect the calculation of the supplemental operating cash flow. b. Depreciation is added to the net income to calculate the supplemental operating cash flow. C depreciation expense is added to the intial outlay incurred to purchase an asset. D. depreciation is deducted from the terminal cash flows from an asset.