{"id":"fuel-trip-cost","engine":"core","category":"math","name":"ค่าเชื้อเพลิงการเดินทาง","fields":[{"key":"distance","label":"ระยะทาง (km)","type":"number","default":300,"required":true,"min":0},{"key":"consumption","label":"อัตราสิ้นเปลือง (L/100 km)","type":"number","default":7,"required":true,"min":0},{"key":"price","label":"ราคา / L","type":"number","default":1.6,"required":true,"min":0}],"sample":{"distance":300,"consumption":7,"price":1.6}}