I google sold for and see various interpretations.
Chicago Office Tower to Be Sold for Record $850 Million
First Wolverine Comic Art Is Sold for Nearly $660,000
Babe Ruth's watch sells for $650,108
Rare Velvet Underground Record Sold for $25k Headed Back to Auction
Arrested ship sold for $61m
Sometimes there is an is but sometimes not.
What's the difference between sold for and is sold for?
Can we use is to be sold for instead of to be sold for?