Yaster Breakfast Supplies is planning to manufacture and market a new toaster. After conducting extensive market surveys, the research department provides the following estimates: 

a weekly demand of 291 at a price of $13 per toaster a weekly demand of 204 at a price of $16 per toaster The financial department estimates that weekly fixed costs will be $1,426 and variable costs (cost per unit) will be $3.

Assume:

the relationship between price and demand is linear the cost function in linear

 Use your models to predict the marginal profit when Yaster is producing and selling 253 toasters per week.