Design conditions of a space are 80 degrees dry bulb, 50% relative humidity. The leaving air temperature of the coil is 55 degrees dry bulb and 54 degrees wet bulb. What is the space sensible heat ratio?

Design conditions of a space are 80 degrees dry bulb, 50% relative humidity. The leaving air temperature of the coil is 55 degrees dry bulb and 54 degrees wet bulb. What is the space sensible heat ratio?