Dynamic Image Scaling - ration Confusion

Here is my code in windows:

main.lua
local myimage = display.newImageRect( “test.png”, 480, 800);

myimage:setReferencePoint(display.CenterReferencePoint);
myimage.x = _W/2; myimage.y = _H/2;

– config.lua

application =
{
content =
{
width = 480,
height = 800,
scale = “zoomEven”, imageSuffix =
{
["@2"] =.94,
},
},
} [import]uid: 31039 topic_id: 6952 reply_id: 306952[/import]

and whats the issue? [import]uid: 8872 topic_id: 6952 reply_id: 24361[/import]