What is the IRR? (using Excel formula)

What is the NPV? (using Excel formula and assuming average risk at 10%)

Year Expected Net Cash Flow

0 ($100,000)

1 $30,000

2 $30,000

3 $30,000

4 $30,000

5 $30,000

5 (salvage value) $20,000

For NPV do you include year 0 in NPV formula or calculate NPV on years 1-5+salvage and then add year 0 to the excel calculation?

Does the salvage value get included in both calculations? Thanks