please find the IRR to 2 decimal places

Sarah Palin reportedly was paid a $12 million advance to write her book Going Rogue. The book took one year to write. In the time she spent writing, Palin could have been paid to give speeches and appear on TV news as a political commentator. Given her popularity, assume that she could have earned $7 million over the year (paid at the end of the year) she spent writing the book