Firestone Company has identified a piece of manufacturing equipment that is potentially impaired. The cost of the asset was $420,000 when it was acquired two years ago. To date, depreciation of $140,000 has been recorded (straight-line over six years with a residual value of nil). This past year, the market for its product has softened due to technology in new machines producing more uniform products. Firestone estimates that the net cash flows expected from this asset's use and eventual disposal will be $50,000 in each of the next four years, with a $20,000 salvage value at the end of the fourth year. The asset's fair value, based on recent sales prices of similar assets, is estimated to be $180,000. The appropriate discount rate for the risk of the asset is 5%.

Can someone else me with P/Y and C/Y functions please. also for compounded and all.