The state of the book is:

$\backslash$table$[[,$Trader,Time,Price,Quantity,Display$],[,$Elin,$9$:$45,10\mathrm{.}20,800,$Y$],[,$Sophia,$9$:$40,10\mathrm{.}09,500,$Y$],[,$Will,$9$:$38,10\mathrm{.}09,100,Y$