Eggstravagant Organics is a regional distributor of organic local eggs. Serving local businesses, Eggstravagant Organics (EO) has an agreement, EO can buy up to 1,000 cartons of eggs per day at $3 per carton. Additional cartons may be purchased at $4 at per carton. Eggstravagant Organics uses environmentally friendly small vehicles to deliver the eggs. Each vehicle can deliver 50 cartons at a cost of $50 per route. The current sales of the company are 1,000 cartons per day at a wholesale price of $6 per carton.

Calculate the break-even sales change for Eggstravagant Organics under the follwoing circumstances:

1) The wholesale price of a carton of eggs increases to $6.60

2) The wholesale price of a carton of eggs decreases to $5.50

3) The wholesale price of a carton of eggs decreases to $5.50 and the current level of sales is 800 cartons (rather than 1,000)