. In the four cases, assume the company retains all after-tax profits (ie, no distributions to owners). Calculate: Profits before and after taxes Change in cash EBITD Coverage ratio . . I-A REVENUE OPERATING COSTS DEPRECIATION INTEREST 400,000 250,000 25,000 20,000 20% PROFITS TAX 400,000 I-B REVENUE OPERATING COSTS DEPRECIATION 250,000 50,000 20,000 20% INTEREST PROFITS TAX IL-A REVENUE OPERATING COSTS DEPRECIATION INTEREST 400,000 250,000 25,000 20,000 30% PROFITS TAX REVENUE OPERATING COSTS DEPRECIATION INTEREST PROFITS TAX 400,000 250,000 50.000 20,000 30