Given the data in the following table, the $IR{R}_{?}$ of this project is $\%.$

NOTE: The table below applies to questions $32$ to $36($it is included on each of these questions$).$

ASC, Inc. is considering the production of a new line of soft drinks at its Springfield, IL plant. The CFO of ASC, Inc. is provided with the following information on the new project:$15\mathrm{.}5619\mathrm{.}4015\mathrm{.}9316\mathrm{.}18$