Suppose that a call option on a share of QQQ is worth $$16\mathrm{.}93$ when the stock price is $$403\mathrm{.}74,$ the exercise price is $$390,$ the risk$-$free rate is $5\mathrm{.}22$ percent, and the time to maturity is $30$ days. What is the value of a put option on a share of this stock if the exercise price and all other variables have the same values?