When collecting gases over water, the total pressure inside the cylinder (in which the gas is collected)

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Question:

When collecting gases over water, the total pressure inside the cylinder (in which the gas is collected) is equal to the sum of the pressure of the gas collected and the pressure of water vapor in equilibrium with liquid water.

Ptotal = Pgas + PH2O

If the total pressure in the room (and in the cylinder) was 758mmHg and the pressure exerted by water vapor at 27.0°C is 14.53torr, what is the partial pressure of the gas in units of atm?