MY RATES:

1 Common = 2 Common or 1 Uncommon
2 Common = 1 Uncommon + 1 common
1 Uncommon = 2 Uncommon or 1 Rare
2 Uncommon = 1 Rare + 1 Uncommon
1 Rare = 2 Rare or 1 Myth (Depends on the item)

GLHF ♥