Solve the following 

Activities (Cost Element) Initial Cost (RM) Yearly Power Consumption Cost (RM) Annual maintenance cost (RM) Annual Operational Cost (RM) Expected resale value at the end-of-life span (RM) Organisation's average Return on Investment Bank Negara Base Lending Rate (BLR) Expected life span Transformer X 780,000 25,000 12,000 20,000 78,000 Transformer Y 700,000 30,000 20,000 30,000 70,000 5% per annum 4% per annum Transformer Z 600,000 45,000 30,000 40,000 60,000 20 years 20 years 20 years Info: Electricity rate: i- commercial =RM 0.40 per kWh; ii-domestic = RM 0.20 per kWh Above are the expected data for electrical transformers in December 2023. For a strategic planning reason, you are required to decide before end of December 2022. Determine the best option for the above alternative purchase of transformers.