PITTSBURGH--(BUSINESS WIRE)--PPG Industries (NYSE:PPG) today reported first quarter 2015 net sales from continuing operations of $3.7 billion, up 1 percent versus the prior year. Net sales in local currencies grew 8 percent year-over-year, including a 7 percent contribution from acquisition-related sales and a 1 percent improvement in sales volume. Unfavorable currency translation reduced year-over-year net sales by 7 percent, or about $260 million. First quarter 2015 reported net income from c