ashton and demi went to lunch at toco bell. the bill including tax, but not the tip , was 22.00. ashton paid 40% of the bill, demi paid 60%

ashton and demi went to lunch at toco bell. the bill including tax, but not the tip , was 22.00. ashton paid 40% of the bill, demi paid 60% of the bill, and they both left an additional 20% of their share of the bill. what is the total amount demi paid?