In $2020,$ Natural Selection, a nationwide computer dating service, had $$536$ million of assets and $$218$ million of liabilities. Earnings before interest and taxes were $$138$ million, interest expense was $$29$ million, the tax rate was $40$ percent, principal repayment requirements were $$25\mathrm{.}8$ million, and annual dividends were $30$ cents per share on $20$ million shares outstanding. What percentage decline in earnings before interest and taxes could Natural Selection have sustained before failing to cover:

Note: Round your answers to $1$ decimal place.