Down for 5% looks approximately like this:
BuyPrice BTC_tobuy $Amt_ToBuy
$423.00 0.20263425 $85.71
$426.00 0.20120724 $85.71
$429.00 0.19980020 $85.71
$432.00 0.19841270 $85.71
$435.00 0.19704433 $85.71
$438.00 0.19569472 $85.71
$441.00 0.19436346 $85.71
$443.00 0.19348597 $85.71
$444.50 0.19283304 $85.71
$446.00 0.19218450 $85.71
$447.50 0.19154030 $85.71
$449.00 0.19090041 $85.71
Up for 5% looks approximately like this:
SellPrice BTC_toSell $amt_toSell
$453.50 0.15750512 $71.43
$455.50 0.18817626 $85.71
$457.50 0.18735363 $85.71
$459.50 0.24871755 $114.29
$462.00 0.24737168 $114.29
$464.50 0.24604029 $114.29
$467.00 0.24472316 $114.29
$469.50 0.24342005 $114.29
$472.00 0.24213075 $114.29
$474.50 0.24085504 $114.29
$477.00 0.23959269 $114.29
$479.50 0.23834351 $114.29
$2.50 increments at $450 = 0.56%. I can only hope you have set your spread accordingly, or use a zero-fee exchange. And a bot. Otherwise that's a lot of monkey-clicking to give an exchange money.