A factory sells a particular product at P.80 per unit. The variable cost is P.60 per unit. The total fixed cost is P12, 000. Determine the following:

a.TR, TC and Profit functions

b.Break-even point in units and pesos

c.The profit when sales are 10, 000 units

d.The amount by which the selling prices will have to increase or decrease for the firm to break even at 4 000 units. Assume all costs remain constant.

e.The amount by which the fixed cost will have to decrease in order for the firm to break-even at a sales volume of 4, 000 units. Assume selling price and variable cost remain the same.