suppose a firm sells two goods, Good A and Good B. Use the following information to answer the question below.

Profit maximizing price of Good A = $6000

MC at profit maximizing level of output of Good A = $1200

MC at profit maximizing level of output of Good B = $400

Total revenue of Good A = $80000

Total revenue of Good B = $68000

Rothschild index of Good B = 0.6

Price elasticity of the market demand for Good B = -1.2

1. Calculate the mark-up and the profit maximizing price that the firm should change for Good B given the information above?