The total amount of money taken in by the federal government in $2014$ was about $3\mathrm{.}57$ trillion dollars. Among those earning $10$ million dollars or more, the average amount of taxes paid was $$7\mathrm{.}88{10}^6.$ That's an awful lot of money. But what percentage is that of the government's revenue? Write in both decimal and scientific notation. Round your answer to seven decimal places for decimal notation, and one decimal place for scientific notation.

In decimal notation, the average amount of taxes paid is $\mathrm{.}0220448\%$ of the total amount of money taken in$.$

In scientific notation, the average amount of taxes paid is $2\mathrm{.}2{10}^{-2}\%$ of the total amount of money taken in$.$