I am 220 pounds and 5'9 If I reduce my diet to 500 calories per day how much weight would I lose in 2 weeks?

Do not bring your diet down to only 500 calories! That would be starving yourself, and as soon as you ate a little more than that all the weight would come back on, or if your like me you may get fed up in the middle of your diet and just binge eat. so best bet is to just have a healthy diet and exercise daily.