Consider future contracts on A particular Asset with delivery date I . Suppose today that A trader closed transactions of the follow - ing types and Amounts : 2010 requests to open A new long position . C'TO requests to close all existing long position , 2}} requests to Dwell A lim short position , and Ban requests to close A short Not sition . What is the change in open interest in this type of futures contract due to the activities of this trader"