Geothermal$$s WACC is $11\mathrm{.}7\%.$ Executive Fruit$$s WACC is $12\mathrm{.}3\%.$ Now Executive Fruit is considering an investment in geothermal power production.

Should it discount project cash flows at $12\mathrm{.}3\%?$

What would be a better discount rate for this investment?

Note: Enter your answer as a percent rounded to $1$ decimal place.