D) What annual Savings would cause NPV to be zero?

Please show step by step so I can learn how

0 Year 1 2 3 4 5 320000 320000 320000 320000 320000 -200000-320000 -192000 -115200 -115200 120000 0 128000 204800 204800 -252001 0 -26880 43008 43008 200000 320000 1920001115200 115200 294800] 320000! 2931201 276992) 276992 - 1000000 O Savings Depreciation EBIT Tax Depn. Add back OCF Investment Dif in NWC Salvage Tax on Salvage Free Cash Flow Discounted Cash Flows NPV @ 16% IRR MACRS% NBV Discount Rate Tax Rate Salvage Rate 100000 -89041 2931201 276992) 368088 1877901529801 175251 - 1000000! 294800] 320000 - 1000000 254138 237812 7971.34 16.33% 20.00% 32.00% 800000 480000 16% 21% 10% 19.20% 288000 11.52% 172800 11.52% 57600