Using GarageSale Version 7.0.14b4 (832), macOS Version 10.12.6 (16G1212)
The Middle Pane needs to redraw/update when Buy-it-Now price or Starting Bid price is changed in “list” view, icon view DOES update correctly. Changing Buy-It-Now Price when multiple listings are selected DOES actually change the Price, but DOES NOT update the price shown in the window middle pane. If you re-select the items, the correct price is shown.
Changing the Quantity field works correctly.
This one is kinda important since it shows incorrect values when either the Buy-it-Now price or the Starting Bid price is changed in “list view”! List view just needs to “update” when either value is changed.
Switching to icon view shows correct values and then back to list view also shows correct values.
Changing the Quantity field in list view DOES immediately show the new values.