Your gross basic salary per month will consist of a maximum of 50% being Housing Assistance (i.e. a maximum of HK$28,500.00) for your claim for rental reimbursement. In the event that your claim for rental reimbursement is less than the aforesaid maximum sum of the Housing Assistance, or you do not have any rental expenses incurred during the relevant period, any amount not used for the Housing Assistance will remain as your monthly gross basic salary.