{"id":"percentile-calculator","engine":"core","category":"math","name":"คำนวณเปอร์เซ็นไทล์","fields":[{"key":"text","label":"รายการตัวเลข","type":"textarea","default":"10, 20, 30, 40, 50","required":true},{"key":"percentile","label":"เปอร์เซ็นไทล์ (%)","type":"number","default":75,"required":true,"min":0,"max":100}],"sample":{"text":"10, 20, 30, 40, 50","percentile":75}}