You are interested in trading a stock with the following order book: Bid Ask

Bid prices: $$50\mathrm{.}20,$ $$5\mathrm{.}10$

Ask prices: $$50\mathrm{.}40,$ $$50\mathrm{.}45$

Bid sizes: $500,200$

Ask sizes: $700,100$

Your objective is to purchase one share of this stock and promptly sell it$.$ Given a brokerage commission of two cents per share, calculate your return after accounting for transaction costs.