Need help finding what formula to use

o veor Story 1 - A contractor has annual workload of $100,000 per year 5V, la rao(0.6189) 361,390 2 and uses a MARR of 5% and a10 oy 2 .5" )7770 Story 2 Estimated future cost in years f the new equipment wle Bogosu + o) $1,000,000. He also estimates in year five he will be able to sell his old equipment for $500,000 4n 61300 Story 3-The company uses 10% hurdle rate for its five year plan. Revenue is expected to be $500,000 in year 1. Annual revenues are anticipated to drop by $50,000 each year starting in year 2. /'/d 430,940 Story 4- Income from the plant is forecast to be $3000 per month for the income vlt he 36w every next 4 years. The plant uses an interest 2 rate of 12 percent per year 36.00 (P/h,21, o veor Story 1 - A contractor has annual workload of $100,000 per year 5V, la rao(0.6189) 361,390 2 and uses a MARR of 5% and a10 oy 2 .5" )7770 Story 2 Estimated future cost in years f the new equipment wle Bogosu + o) $1,000,000. He also estimates in year five he will be able to sell his old equipment for $500,000 4n 61300 Story 3-The company uses 10% hurdle rate for its five year plan. Revenue is expected to be $500,000 in year 1. Annual revenues are anticipated to drop by $50,000 each year starting in year 2. /'/d 430,940 Story 4- Income from the plant is forecast to be $3000 per month for the income vlt he 36w every next 4 years. The plant uses an interest 2 rate of 12 percent per year 36.00 (P/h,21