{ "fields": [ { "label": "Enter single briquet cost ($):", "id": "enter_single_briquet_cost", "type": "input" }, { "label": "Cost per day per 100 sq ft:", "id": "", "type": "output", "formula": "{enter_single_briquet_cost}/180", "format": "currency" }, { "label": "Enter briquet case cost ($):", "id": "enter_briquet_case_cost", "type": "input" }, { "label": "Cost per day per 100 sq ft:", "id": "", "type": "output", "formula": "{enter_briquet_case_cost}/200/180", "format": "currency" } ] }