It's a confusion of the concepts "Expenses" "Profits" and "Revenue" say you have 100 barrels of revenue, but you must expend 60 barrels to get the 100 barrels,

It's a confusion of the concepts "Expenses" "Profits" and "Revenue" say you have 100 barrels of revenue, but you must expend 60 barrels to get the 100 barrels, then you have 40 barrels of profit. you consume more barrels than you produce. See?