Examine Starter 6-3 (FIFO costing) and Starter 6-5 (moving-weighted average costing). Focus on the sale of goods

Question:

Examine Starter 6-3 (FIFO costing) and Starter 6-5 (moving-weighted average costing). Focus on the sale of goods on June 30. Why is cost of goods sold different between FIFO costing and moving-weighted-average costing? Explain.
In Starter 6-3
Schwenn started June with five bicycles that cost $190 each. On June 16, Schwenn bought 20 bicycles at $200 each. On June 30, Schwenn sold 15 bicycles.