Igor's Ice Cream business is struggling.

Igor is hoping marketing new flavors will help him.

For an additional one$-$time $$2000$ in marketing costs, Igor is hoping for a boost in sales.

The new marketing should boost his sales by $7\%$ next year, $15\%$ in year $2,7\%$ in year $3,3\%$ in year $4,$ and be obsolete after $4$ years.

Igor doesn't expect any salvage value from his marketing materials.

Variable costs will continue to be $35\%$ of sales and taxes will continue to be $15\%$ of EBIT.

The additional marketing costs are expensed on the income statement, thus there is no change in annual depreciation and no shutdown tax effects.

If Igor pursues this plan, his current assets are projected to increase from $$4750$ to $$10370$

and his current liabilities are projected to decrease from $$1580$ to $$748.$

$1)$ Create a $4-$year schedule of cash flows for Igor.

Calculate the expected $2)$ NPV$,3)$ IRR, and $4)$ MIRR of this marketing plan if Igor expects to pay for it using existing cash$-$on$-$hand $($with a cost of capital of $7\mathrm{.}7\%)$

Calculate the expected $5)$ NPV$,6)$ IRR, and $7)$ MIRR of this marketing plan if Igor instead uses his line of credit at $3\mathrm{.}5\%$

$8)$ Does the source of financing change your recommendation?