Answer complete with full steps to get 100% feedback!! (hand calculations)

Use compound interest table (from internet) for the values where required.

Determine the present worth of the given cash flow.

Draw a cash flow diagram and explain your work for an interest rate of 7% per year?

Year Cash Flow

0 0

1 300

2 300+115

3 300+230

4 300+345

5 300+460

6 -500

7 -800