Motorville Auto Parts pays salespeople as follows: $$488$ per week plus a commission of $1\mathrm{.}1\%$ on sales above $$15,000$

through $$25,000$ with $1\mathrm{.}4\%$ paid on sales in excess of $$25,000.$ Find the gross earnings of the salesperson. $($No commission

is paid on the first $$15,000$ of sales.$)$

What are the gross earnings for the employee if his total sales are $$36,800$