The following project is under consideration:

$\backslash$table$[[$Event$,$Prob.,CF$0,$CF$1,$CF$2,$CF$3],[$Pessimistic$,\mathrm{.}3,-100,105,-115,0],[$Neutral$,\mathrm{.}4,-100,110,0,0],[$Optimistic$,\mathrm{.}3,-100,115,115,0]]$

The firm's cost of capital is $10\%.$ Calculate the standard deviation of the project's NPV$.$

Enter your answer without a $

Answer: