Close October 2014 K200 Put Spread of Iron Condor

Sep-19, I closed the K200 October 2014 Put Spread of Iron Condor 247.5/250/277.5/280.

Details:
Buy K200 October 250 Put at 0.17
Sell K200 October 247.5 Put at 0.13

Note: All calculation before commission
Credit received : 0.20 (KRW 100,000)
Credit paid : 0.04 (KRW 20,000)
Profit : 0.16 (KRW 80,000), 80% of Credit
Margin : ~KRW 1,000,000 for full Iron Condor
Return On Margin (ROM) : 8% or 16% for full Iron Condor or half Iron Condor respectively
Days on Trade : 30