區間漲幅上限語法有誤

前幾天XQ臉書有示範選股語法--  N日內漲幅低於15%

程式碼如下

//----- 區間漲幅 -----
input:days(60,"天數");

input:percent(15,"漲幅上限");

if close[ days - 1 ] <> 0 and close > close[ days - 1 ]
  then value10 = ( close - close[ days - 1] ) / close[ days - 1 ] * 100;
 
if value10 < percent 
  then ret = 1;
 
SetOutputName1("區間漲幅");

OutputField1(value10);

邏輯上不錯用

就拿來修改

//----- 區間漲幅 -----
input:days(10,"天數");

input:percent(10,"漲幅下限");

if close[ days - 1 ] <> 0 and close > close[ days - 1 ]
  then value10 = ( close - close[ days - 1] ) / close[ days - 1 ] * 100;
 
if value10 > percent 
  then ret = 1;
 
SetOutputName1("區間漲幅");

OutputField1(value10);

---10天內漲幅〝下限〞10%

但選股結果是沒半檔

請問應該要怎麼修改才能找出爛股票但短線噴出的空股？