Year investment. Operating income

$0100,000$

$10$

$25,000$

$35,000$

$410,000$

$55,000$

Debt cost $6\mathrm{.}0\%$

Equity cost $14\mathrm{.}0\%$

WACC. $9\mathrm{.}0\%$

$1\mathrm{.}0$ What is the IRR for this investment?

$2\mathrm{.}0$ An increase in borrowing costs has increased the WACC to $11$ percent. Should they still invest?