Santander bank profit fell 84% in Argentina, after inflation-adjustment expenses, but that was almost an anomaly in the Americas, with the bank confirming it will boost investment in Latin American businesses to offset a weak economy in Europe Banco Santander SA relied on its increasing commitment to fast-growing Latin American markets to make up for sluggish European units that weighed on first-quarter profit. Net income fell 10 percent, hit by a charge of 108 million euros (US$121 million) for restructuring…