Or HaChaim on Numbers 31:51/אור החיים על במדבר ל״א:נ״א

1 כל כלי מעשה, "all kinds of wrought articles." We get an idea of the quantity and variety of the loot the Israelites captured from the Midianites if these wrought articles alone amounted to 16,750 shekels. The Torah (verse 53) adds: "each man looted for himself" after the Torah had already told us previously that the soldiers had looted for themselves. Why did the Torah mention this fact again in this context? Apparently the Torah wanted to tell us that this was the sum total of all the golden pieces which the commanders had captured, exclusive of what the common soldiers had captured which had been mentioned previously. Altogether, great riches had been found and captured.