Section: Math

28) Blake earns base pay of $10 per hour at a clothing boutique. He also earns a certain percentage commission on sales. Blake worked an average of 37 hours per week over a two-week period. If he also helped broker $7,500 in sales and his total pay is $1,000 for the two-week period, approximately what percentage commission does he earn? 

1. 1.5%
2. 2.5%
3. 3.5%
4. 4.5%