i need all calculations ,don't just put the value . i need proper calculations .and also add cash flow

1) A project engineer is assigned to start up a new office in a city where a contract has been finalized. Two separate lease options are being considered. The relevant data is given below: Lease 2 $18,000 Lease 1 $15,000 6 years $3,500 $1,000 Initial Cost: Lease Term: Annual Lease Costs: Deposit Return: 9 years $3,100 $2,000 The company uses an interest rate of 15%. On the basis of Cash Flow Diagramming and Present Worth, which configuration should be selected? Why? (10 points)