Calculating AC power figure using the DC current consumption
Your useage of 3.3 * 0.2  =  0.66 watts 

You should have multiplied like this : 3.3v * .24 = 0.792 watts 

For a rough estimate, you can use this method to estimate consumption at 220 VAC as :  0.792/220 =  3.6 mA.  

However, this does not take into account the current drawn by the primary of the transformer alone.  You would have to measure the current draw of the transformer when there was no load, and add this to the additional 3.6 mA.  

The current due to the primary winding is mostly reactive, and not consumed as power, but still counts in the total primary current.