Marko works in sales for Mardsen Home Supplies, earning an annual salary of $54,300 and gets paid semi-monthly. His salary is based on a regular 37.5 hour work week and occasionally he works overtime for which he gets paid at time-and-a-half. To encourage sales productivity of its employees, the company also pays them a commission of 1% on sales above $10,000 and 2% on sales above $20,000. During the last pay period, Marko had a very good sales period, making 37,585.00 in gross sales and he worked 6.5 hours of overtime. If the company records show that returns and allowances on Marko's sales during the last pay period were $6,020.00, what were Marko's gross earnings for that pay period? Gross earnings: $