7. Works to repair and expand the Senai's Airport costed around RM 2.5 million. The government intends to loan to fund the project with an interest of 8% per year compounded every six months. The airport's authority will increase the yearly landing charge for each commercial plane for the purposes of recovery plan of the capital investment. If the authority would like to get back its investment in five years' time, calculate how much is the yearly increment the authority should get due to this new landing charge fees