What does % vs. 52w Low mean?
This compares the current price to the lowest Price the stock has traded at in the last 12 months expressed as a percentage.
To screen for companies that are within 10% of their 52wk Lw, the criteria would be Price vs. 52 Week Low < 10, rather than greater than 90, i.e. it's a comparison rather than a rank. Here's a sample screen that you can fork.