From here, I think it uses the median price from the feed history, so that's what I was watching (and what is displayed as "Price" in the sample output I posted above).

Curiously, it seems like the block explorers and the get_current_median_history_price API call stop tracking the actual median once it drops below the 10% threshold, so I think that the reported median from Steem World might actually be the threshold where SBDs will start printing again.

According to my calculations the current median is actually, $0.234, and the 10% threshold is 0.252057 (which rounds to 0.25206), so I don't completely know how to explain the value that Steem World is reporting for the median price - even though it matches what the API call says. Maybe @steemchiller can clarify.