In 2022, the calculation method of Shenzhen BYD general workers' food expenses is to deduct meal supplements at their own expense. Shenzhen BYD has a staff canteen that provides three meals at its own expense, but it is not a free staff canteen. Shenzhen BYD's staff canteen is cheap, 1500 yuan per month, but Shenzhen BYD will have food supplements from 200 yuan. Therefore, in 2022, the calculation method of the meal expenses of Shenzhen BYD general workers is to subtract the self-funded meal expenses.