Can you please show to find this answer using Excel.

I entered the numbers seen on the excel and got the answer wrong. Can someone explain how i messed up?

A remotely located air sampling station can be powered by solar cells or by running an electric line to the site and using conventional power. Solar cells will cost $7,500 to install and will have a useful life of 4 years with no salvage value. Annual costs for inspection, cleaning, etc. are expected to be $1,650. A new power line will cost $14,500 to install, with power costs expected to be $1,350 per yeak. Since the air sampling project will end in 4 years, the salvage value of the line is considered to be zero. At an interest rate of 9% per year, which alternative should be selected on the basis of a future worth analysis? The future worth of solar cells is $ and that of electric line is $ should be selected on the basis of a future worth analysis