You are considering adding 3 coffee machines to meet upcoming demands. Cost of coffee machine is $2,000 each. You will be charged a one off installation cost of $100 for set-up. Your machines will have a 5 years economic life with no salvage value. The machines is expected to increase your revenue by 1000 annually, whilst operating it at a cost of 350 annually. Your initial budget is $7,000 investment.

What would be the annual incremental cash flow from year 1 to 5?