$($IRR of an uneven cash flow stream$)$ Microwave Oven Programming, Inc. is considering the construction of a new plant. The plant will have an initial cash outlay of $$7\mathrm{.}8$ million $(=-$$$7\mathrm{.}8$ million$),$ and will produce cash flows of $$2\mathrm{.}1$ million at the end of year $1,$$$5$ million at the end of year $2,$ and $$1\mathrm{.}5$ million at the end $3.$ What is the internal rate of return on this new plant?

The IRR of the project is $\%.($Round to two decimal places.$)$