The Mundane Situations of Chestnut + Hazel # 35

Reddit comment related to thread/discussion "What to do: 880 shares of Apple at 0.42¢"

I'm wondering why the account has an equity percentage of 43%? initial margin requirements are usually 50% with a maintenance margin requirement of 25%, but the account holder clearly didn't enter the positions listed anytime recently considering the cost basis for the securities listed, meaning that it doesn't appear that the shares were purchased on margin, and then subsequently fell in value by 3.5% which would result in a 7% unrealized loss on the positions and an equity percentage of 43%. was the account holder using margin for the purchase of something other than securities?

References:

https://www.reddit.com/r/fidelityinvestments/comments/1n0ydxi/what_do_do_880_shares_of_apple_at_042/