Create offer screen - Floatig price - Buy/Sell - %Above/%Below market price is not obvious it can be changed in both directions and wrong defaults
When you create an offer to buy or sell for floating/market price, depending if you select to make a buy offer or sell offer, By default it displays %Above market price OR %below market price which may confuse people it can be in one direction only as its not intuitive  to put a negative number.
Perhaps the wording for the text box should be update to display '%above / %below the market price' and change from free text box to a stepper ui element where arrows can be pressed to go up or down .5 percentage points.

As an aside, Currently It would seem the default for a create a buy, the taker/seller is offered below market rates(%below) and create a sell, the taker/buyer is offered above market rates (%above). the defaults are in the wrong directions, and this is why the order book currently has offers that are not attractive to buyers or sellers unless a negative percentage is placed in the below/above market price box.