Suppose the spot ask exchange, rate, $S(\frac{\text{\$}}{}),$ is $$1\mathrm{.}90=1\mathrm{.}00$ and the spot bid exchange rate, $S(\frac{\text{\$}}{}),$ is $$1\mathrm{.}89=1\mathrm{.}00.$ If you were to buy $$10,000,000$ worth of British pounds and then sell them five minutes later, how much of your $$10,000,000$ would be "eaten" by the bid$-$ask spread?