German logistics and delivery giant DHL reported second quarter net profit of €744 million ($802 million), a decline of 23.9% from a year ago, as a sluggish global economy dampened demand. “Air and ocean freight volumes further improved in the second quarter from a low starting level. However, we are not observing a broad-based recovery of global trade yet,” CFO Melanie Kreis said in a statement on Thursday. Operating profit was below the prior-year level at €1.35 billion compared to €1.7 billion. Second quarter revenue was €20.64 billion, up 2.7%. The DHL Group confirmed its forecast for fisc…