Visa Inc , the world's largest credit and debit card company, forecast profit below Wall Street expectations for the current quarter, hurt by continued pressure from lower crude prices and a strong dollar. The company forecast third-quarter earnings per share 6-8 cents lower than analysts' expectations. Analysts on average are expecting the company to earn 65 cents per share, according to Thomson Reuters I/B/E/S. Visa earns international transaction revenues through cross-border transactions and currency conversion, making it sensitive to foreign-exchange fluctuations.