Blue jean icon Levi Strauss has reported that its second quarter profits have plummeted 98 percent as a result of weak consumer spending in the US and the cost of new software which has also disrupted supplies. Announcing its financial results for the second quarter ended May 25, 2008, yesterday, Levi Strauss declared net income of $1 million, compared to $46 million in the same quarter last year.   The company blamed the weak US economy and costs related to rolling out new ERP (enterprise resource planning) software that caused shipping delays and dented US sales.