Feedback for An investor entered into 5 Short Copper contracts where one contract consists of 200 Kgs of copper when the price per Kg of copper was $50. Assuming initial margin requirement is $3000 and the maintenance margin is $2000 which is paid by the investor at the time T0, find out amount need to be paid by the investor to maintain margin requirements at T1 if price increases to $51.5 and initial payment made by the investor at time T0 to fulfil margin requirements.