Company XYZ is considering the following investment project:

It is a 3-year project;

Initial investment is $210,000;

Annual unit sales is predicted at 1,050;

Unit sales price in the first year will be $180 and it will increase with inflation rate;

Inflation rate is estimated to be 2% annually;

Unit variable cost is $65 in the first year and it will increase with inflation rate;

Total fixed costs is $19,000 in the first year and it will increase with inflation rate;

Net working capital is 10% of sales in the next year;

Marginal income tax rate is 21%;

Straight-line depreciation method is used;

Salvage value of the investment in 3 years is $18,000 (capital gain tax is 15%);

XYZ's WACC is 15.50% annually and this project has an average risk level.

(1) Find the net incremental cash flows;

(2) If it is reasonable to assume this company can reinvest cash flows for an annual return of 15.50%, which is the MIRR of this project?

(3) What is the discounted payback period of this project?

Please show how you got the answers. Thank you!