Itney sells mattresses at a furniture store. She makes a 9.75% commission on each mattress she sells. Last week, Britney sold four mattresses. The sale price of each mattress is shown in the table. Mattress 1 $2400 Mattress 2 $3200 Mattress 3 $1900 Mattress 4 $800 How much did Britney earn last week? Enter your answer in the box.