UNITEC PERU is a company in the energy sector that wants to buy a lot 500 solar panels to manufacturer Jinko Solar from WUHAN CHINA. If the price of list of each panel is $ 150 and it is agreed with the manufacturer to make a purchase making use of the Commercial Credit, with an initial fee of 20% of the value of purchase and 6 months to pay with an interest rate of 2.3% per month. a) Calculate the value of the installments to be paid. b) What would be the interest generated in the six months?