Grow-room energy question

How much would you guys guess a small grow room say 6 ft long with 4, 48" flourecent work bulb's and a small fan would bring up the electricity bill?

My bill went up $45.00 and I have HID lighting,two 400 watt and 3-42 watt CFLs.I have my cab going the bill is up $48.00.That's two fans 200cfm and a 300cfm exhausting air.plus two 25cfm fans and the air pump,flood pump,timers.Before I used 4-48" tubes like you want to know about.A soil grow and it takes for ever to finish.The Bill then was like $10.00 more.I pay $0.11 per killowatt hour from electricity company where i live.It's all by the killowatt hour plus the tax and franchise charge it all come down to the cost of your killowatt hour.Peace