Please help

In the graph on the right, the demand for sub sandwich rolls has changed because the price of sandwich meat has risen from $2.80 to $3.80 per package. Submarine sandwich rolls 4 00- The cross-price elasticity of demand between sandwich meat and 3.75- sub sandwich rolls is . (Use the midpoint formula and enter your response 3.50- 3.25- rounded to two decimal places. Be sure to include the minus sign if necessary.) 3.00- 2.75- 2.50- 2 25- S Price (dollars per package of rolls) 2.00- 1.89 ... .. 1 50- 1.25- 1.00- D1 0.75- 0.50- D2 0.25- 6,000 :7,0009,000 0.00- 3,000 6,000 9,000 12,000 15,000 Quantity (packages of rolls per week)