At this moment, WSJ quotes 10-year T-note as below:
Price: $100 3/32
Price change: -2/32 (-0.08%)
Question 1: Where does the -0.08% change come from?
To me, it seems the old price is 100 5/32. Until now, the price dropped 2/32. So price now is $100 3/32. Then, the change should be (-2/32) / 100 5/32 = -0.0624%.
Question 2: A few moments later, the quote shows
Price: $100 2/32
Price change: -2/32 (-0.06%)
How is it possible that, compared from above, the price changed to 100 2/32, but the change is still -2/32?
What exactly does the price change entail? (e.g. from 24 hours ago, or from beginning of day etc.)