Use the Tаx Shield wоrksheet in the templаte tо dо your cаlculations. Boring Company's market value balance sheet is below: Net Working Capital 20 Debt (D) 40 Long-term assets 140 Equity (E) 120 Firm Value 160 Firm Value (V) 160 Assume no growth, and that the $40 of debt is permanent. The corporate tax rate is 40%. How much of the firm's value is accounted for by the interest tax shield? Format: just enter the number, such as XX or XXX.