Okay, so David Marin has an HR Manager role at a non-profit organization in Los Angeles, which is a big city with a high cost of living. The salary range for HR Managers in LA is around $40,000-$60,000 per year, according to national averages. However, considering the non-profit sector and his experience, I'd estimate his hourly rate to be on the lower side. Let's assume he's experienced enough to command a higher rate, but still within the industry average. I'll round down to $35 per hour, considering the non-profit sector and the city's cost of living.