An investment has a cost of $$6,500,000.$

The investment will give $$1,300,000$ within $1$ year, $$2,600,000$ within $18$ months and $$3,850,000$ within $28$ months.

The risk$-$free rate is $8\mathrm{.}5\%$ per year, compounded monthly.

Calculate the Net Present Value of this investment

Calculate the Internal Rate of Return for this investment

Is it worth making the investment