Dr$.$ Gupta Diagnostics' income statement for $20$XX is as follows:SalesCost of goods soldGross profitSelling and administrative expenseOperating profitInterest expenseIncome before taxesTaxes $(30\%)$Income after taxes$$2,950,0002,180,000770,000393,000377,00052,500324,50097,350$$$227,150$a$.$ Compute the profit margin in $20$XX$.($Round the final answer to $2$ decimal places.$)$Profit margin$\%$b$.$ Assume in $20$XY sales increase by $10$ percent and cost of goods sold increases by $20$ percent. The firm is able to keep all other expenses the same. Once again, assume a tax rate of $30$ percent. What are the income after taxes and profit margin in $20$XY$?($Round the profit margin to $2$ decimal places.$)20$XYIncome after taxesProfit margin$