A five$-$year project has a net present value of R $160,000$ when it is discounted at $12\%.$ The project includes an annual cash outflow of R$50,000$ for each of the five years. No tax is payable on projects of this type.

The percentage increase in the value of this annual cash outflow that would make the project no longer financially viable is closest to:

A $64\%$

B $89\%$

C $113\%$

D$156\%$

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